72446680 has 16 divisors (see below), whose sum is σ = 163005120. Its totient is φ = 28978656.

The previous prime is 72446663. The next prime is 72446719. The reversal of 72446680 is 8664427.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 905544 + ... + 905623.

It is an arithmetic number, because the mean of its divisors is an integer number (10187820).

Almost surely, 2^72446680 is an apocalyptic number.

It is an amenable number.

72446680 is an abundant number, since it is smaller than the sum of its proper divisors (90558440).

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

72446680 is a wasteful number, since it uses less digits than its factorization.

72446680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1811178 (or 1811174 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 72446680 is about 8511.5615488581. The cubic root of 72446680 is about 416.8752988946.

It can be divided in two parts, 7244 and 6680, that added together give a square (13924 = 118²).

The spelling of 72446680 in words is "seventy-two million, four hundred forty-six thousand, six hundred eighty".