665426232 has 32 divisors (see below), whose sum is σ = 1848406800. Its totient is φ = 221808672.

The previous prime is 665426219. The next prime is 665426233. The reversal of 665426232 is 232624566.

665426232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (665426233) 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, 1540123 + ... + 1540554.

Almost surely, 2^665426232 is an apocalyptic number.

It is an amenable number.

665426232 is an abundant number, since it is smaller than the sum of its proper divisors (1182980568).

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

665426232 is a wasteful number, since it uses less digits than its factorization.

665426232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3080692 (or 3080682 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

The square root of 665426232 is about 25795.8568766382. The cubic root of 665426232 is about 873.0383186024.

The spelling of 665426232 in words is "six hundred sixty-five million, four hundred twenty-six thousand, two hundred thirty-two".