72406608 has 20 divisors (see below), whose sum is σ = 187050528. Its totient is φ = 24135520.

The previous prime is 72406571. The next prime is 72406613. The reversal of 72406608 is 80660427.

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, 754188 + ... + 754283.

Almost surely, 2^72406608 is an apocalyptic number.

It is an amenable number.

72406608 is an abundant number, since it is smaller than the sum of its proper divisors (114643920).

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

72406608 is a wasteful number, since it uses less digits than its factorization.

72406608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1508482 (or 1508476 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 72406608 is about 8509.2072486219. The cubic root of 72406608 is about 416.7984234697.

The spelling of 72406608 in words is "seventy-two million, four hundred six thousand, six hundred eight".