674991432 has 48 divisors (see below), whose sum is σ = 1829777040. Its totient is φ = 224791008.

The previous prime is 674991403. The next prime is 674991437. The reversal of 674991432 is 234199476.

It is a happy number.

It is a super-2 number, since 2×674991432² = 911226866546821248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (674991437) 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 11 ways as a sum of consecutive naturals, for example, 88723 + ... + 96029.

It is an arithmetic number, because the mean of its divisors is an integer number (38120355).

Almost surely, 2^674991432 is an apocalyptic number.

It is an amenable number.

674991432 is an abundant number, since it is smaller than the sum of its proper divisors (1154785608).

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

674991432 is a wasteful number, since it uses less digits than its factorization.

674991432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8602 (or 8595 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 674991432 is about 25980.5972217730. The cubic root of 674991432 is about 877.2016098950.

The spelling of 674991432 in words is "six hundred seventy-four million, nine hundred ninety-one thousand, four hundred thirty-two".