76398220 has 24 divisors (see below), whose sum is σ = 160602624. Its totient is φ = 30527616.

The previous prime is 76398199. The next prime is 76398253. The reversal of 76398220 is 2289367.

It is a self number, because there is not a number n which added to its sum of digits gives 76398220.

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, 32112 + ... + 34408.

It is an arithmetic number, because the mean of its divisors is an integer number (6691776).

Almost surely, 2^76398220 is an apocalyptic number.

It is an amenable number.

76398220 is an abundant number, since it is smaller than the sum of its proper divisors (84204404).

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

76398220 is a wasteful number, since it uses less digits than its factorization.

76398220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3969 (or 3967 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 76398220 is about 8740.6075303722. The cubic root of 76398220 is about 424.3208900494.

The spelling of 76398220 in words is "seventy-six million, three hundred ninety-eight thousand, two hundred twenty".