1689308352 has 56 divisors (see below), whose sum is σ = 4966258800. Its totient is φ = 563102208.

The previous prime is 1689308351. The next prime is 1689308359. The reversal of 1689308352 is 2538039861.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1689308298 and 1689308307.

It is not an unprimeable number, because it can be changed into a prime (1689308351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 487077 + ... + 490532.

Almost surely, 2^1689308352 is an apocalyptic number.

1689308352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1689308352 is an abundant number, since it is smaller than the sum of its proper divisors (3276950448).

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

1689308352 is an equidigital number, since it uses as much as digits as its factorization.

1689308352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977630 (or 977614 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 1689308352 is about 41101.1964789348. The cubic root of 1689308352 is about 1190.9759082488.

The spelling of 1689308352 in words is "one billion, six hundred eighty-nine million, three hundred eight thousand, three hundred fifty-two".