672431580 has 36 divisors (see below), whose sum is σ = 2039709672. Its totient is φ = 179315040.

The previous prime is 672431569. The next prime is 672431587. The reversal of 672431580 is 85134276.

672431580 is a `hidden beast` number, since 6 + 72 + 4 + 3 + 1 + 580 = 666.

672431580 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

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 (672431587) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1867686 + ... + 1868045.

It is an arithmetic number, because the mean of its divisors is an integer number (56658602).

Almost surely, 2^672431580 is an apocalyptic number.

672431580 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

672431580 is an abundant number, since it is smaller than the sum of its proper divisors (1367278092).

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

672431580 is a wasteful number, since it uses less digits than its factorization.

672431580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3735746 (or 3735741 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 672431580 is about 25931.2857375025. The cubic root of 672431580 is about 876.0912990474.

The spelling of 672431580 in words is "six hundred seventy-two million, four hundred thirty-one thousand, five hundred eighty".