672450040 has 32 divisors (see below), whose sum is σ = 1515069360. Its totient is φ = 268614400.

The previous prime is 672450029. The next prime is 672450041. The reversal of 672450040 is 40054276.

It is a junction number, because it is equal to n+sod(n) for n = 672449990 and 672450008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672450041) 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, 19395 + ... + 41485.

Almost surely, 2^672450040 is an apocalyptic number.

It is an amenable number.

672450040 is an abundant number, since it is smaller than the sum of its proper divisors (842619320).

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

672450040 is a wasteful number, since it uses less digits than its factorization.

672450040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22863 (or 22859 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 672450040 is about 25931.6416757598. The cubic root of 672450040 is about 876.0993159708.

The spelling of 672450040 in words is "six hundred seventy-two million, four hundred fifty thousand, forty".