1671398232 has 288 divisors, whose sum is σ = 5337169920. Its totient is φ = 434367360.

The previous prime is 1671398203. The next prime is 1671398233. The reversal of 1671398232 is 2328931761.

1671398232 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

Its product of digits (108864) is a multiple of the sum of its prime divisors (189).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1671398233) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 13160553 + ... + 13160679.

It is an arithmetic number, because the mean of its divisors is an integer number (18531840).

Almost surely, 2^1671398232 is an apocalyptic number.

1671398232 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 1671398232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2668584960).

1671398232 is an abundant number, since it is smaller than the sum of its proper divisors (3665771688).

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

1671398232 is a wasteful number, since it uses less digits than its factorization.

1671398232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219 (or 189 counting only the distinct ones).

The product of its digits is 108864, while the sum is 42.

The square root of 1671398232 is about 40882.7375795702. The cubic root of 1671398232 is about 1186.7520196291.

The spelling of 1671398232 in words is "one billion, six hundred seventy-one million, three hundred ninety-eight thousand, two hundred thirty-two".