672135432 has 32 divisors (see below), whose sum is σ = 1680979200. Its totient is φ = 223959744.

The previous prime is 672135419. The next prime is 672135433. The reversal of 672135432 is 234531276.

It is a junction number, because it is equal to n+sod(n) for n = 672135393 and 672135402.

It is not an unprimeable number, because it can be changed into a prime (672135433) 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 7 ways as a sum of consecutive naturals, for example, 108318 + ... + 114354.

It is an arithmetic number, because the mean of its divisors is an integer number (52530600).

Almost surely, 2^672135432 is an apocalyptic number.

It is an amenable number.

672135432 is an abundant number, since it is smaller than the sum of its proper divisors (1008843768).

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

672135432 is a wasteful number, since it uses less digits than its factorization.

672135432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10685 (or 10681 counting only the distinct ones).

The product of its digits is 30240, while the sum is 33.

The square root of 672135432 is about 25925.5748634432. The cubic root of 672135432 is about 875.9626659930.

The spelling of 672135432 in words is "six hundred seventy-two million, one hundred thirty-five thousand, four hundred thirty-two".