672892440 has 64 divisors (see below), whose sum is σ = 2202197760. Its totient is φ = 163125120.

The previous prime is 672892411. The next prime is 672892447. The reversal of 672892440 is 44298276.

It is a junction number, because it is equal to n+sod(n) for n = 672892392 and 672892401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672892447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253564 + ... + 256203.

It is an arithmetic number, because the mean of its divisors is an integer number (34409340).

Almost surely, 2^672892440 is an apocalyptic number.

672892440 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

672892440 is an abundant number, since it is smaller than the sum of its proper divisors (1529305320).

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

672892440 is a wasteful number, since it uses less digits than its factorization.

672892440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509792 (or 509788 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 672892440 is about 25940.1703926555. The cubic root of 672892440 is about 876.2914003135.

The spelling of 672892440 in words is "six hundred seventy-two million, eight hundred ninety-two thousand, four hundred forty".