672038540 has 24 divisors (see below), whose sum is σ = 1411784640. Its totient is φ = 268719488.

The previous prime is 672038539. The next prime is 672038573. The reversal of 672038540 is 45830276.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 672038540.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85496 + ... + 93024.

It is an arithmetic number, because the mean of its divisors is an integer number (58824360).

Almost surely, 2^672038540 is an apocalyptic number.

It is an amenable number.

672038540 is an abundant number, since it is smaller than the sum of its proper divisors (739746100).

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

672038540 is a wasteful number, since it uses less digits than its factorization.

672038540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12001 (or 11999 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 672038540 is about 25923.7061393621. The cubic root of 672038540 is about 875.9205723666.

The spelling of 672038540 in words is "six hundred seventy-two million, thirty-eight thousand, five hundred forty".