72476660 has 24 divisors (see below), whose sum is σ = 152468736. Its totient is φ = 28939680.

The previous prime is 72476641. The next prime is 72476681. The reversal of 72476660 is 6667427.

It is a happy number.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 9749 + ... + 15491.

It is an arithmetic number, because the mean of its divisors is an integer number (6352864).

Almost surely, 2^72476660 is an apocalyptic number.

It is an amenable number.

72476660 is an abundant number, since it is smaller than the sum of its proper divisors (79992076).

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

72476660 is a wasteful number, since it uses less digits than its factorization.

72476660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6383 (or 6381 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 72476660 is about 8513.3225006457. The cubic root of 72476660 is about 416.9327949633.

The spelling of 72476660 in words is "seventy-two million, four hundred seventy-six thousand, six hundred sixty".