72406680 has 32 divisors (see below), whose sum is σ = 217220400. Its totient is φ = 19308416.

The previous prime is 72406679. The next prime is 72406687. The reversal of 72406680 is 8660427.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72406687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 301575 + ... + 301814.

Almost surely, 2^72406680 is an apocalyptic number.

It is an amenable number.

72406680 is an abundant number, since it is smaller than the sum of its proper divisors (144813720).

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

72406680 is a wasteful number, since it uses less digits than its factorization.

72406680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603403 (or 603399 counting only the distinct ones).

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

The square root of 72406680 is about 8509.2114793323. The cubic root of 72406680 is about 416.7985616223.

The spelling of 72406680 in words is "seventy-two million, four hundred six thousand, six hundred eighty".