1689131232 has 240 divisors, whose sum is σ = 5144610240. Its totient is φ = 543449088.

The previous prime is 1689131231. The next prime is 1689131239. The reversal of 1689131232 is 2321319861.

It is a super-3 number, since 3×1689131232³ (a number of 29 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1689131231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 14948008 + ... + 14948120.

It is an arithmetic number, because the mean of its divisors is an integer number (21435876).

Almost surely, 2^1689131232 is an apocalyptic number.

1689131232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1689131232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2572305120).

1689131232 is an abundant number, since it is smaller than the sum of its proper divisors (3455479008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1689131232 is a wasteful number, since it uses less digits than its factorization.

1689131232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287 (or 270 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 1689131232 is about 41099.0417406538. The cubic root of 1689131232 is about 1190.9342831215.

The spelling of 1689131232 in words is "one billion, six hundred eighty-nine million, one hundred thirty-one thousand, two hundred thirty-two".