76385220 has 24 divisors (see below), whose sum is σ = 213878784. Its totient is φ = 20369376.

The previous prime is 76385171. The next prime is 76385291. The reversal of 76385220 is 2258367.

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, 636484 + ... + 636603.

It is an arithmetic number, because the mean of its divisors is an integer number (8911616).

Almost surely, 2^76385220 is an apocalyptic number.

It is an amenable number.

76385220 is an abundant number, since it is smaller than the sum of its proper divisors (137493564).

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

76385220 is a wasteful number, since it uses less digits than its factorization.

76385220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273099 (or 1273097 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 76385220 is about 8739.8638433330. The cubic root of 76385220 is about 424.2968210572.

The spelling of 76385220 in words is "seventy-six million, three hundred eighty-five thousand, two hundred twenty".