76331730 has 16 divisors (see below), whose sum is σ = 183196224. Its totient is φ = 20355120.

The previous prime is 76331729. The next prime is 76331743. The reversal of 76331730 is 3713367.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 2544391 = 76331730 / (7 + 6 + 3 + 3 + 1 + 7 + 3 + 0).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1272166 + ... + 1272225.

It is an arithmetic number, because the mean of its divisors is an integer number (11449764).

Almost surely, 2^76331730 is an apocalyptic number.

76331730 is an abundant number, since it is smaller than the sum of its proper divisors (106864494).

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

76331730 is a wasteful number, since it uses less digits than its factorization.

76331730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2544401.

The product of its (nonzero) digits is 7938, while the sum is 30.

The square root of 76331730 is about 8736.8031910991. The cubic root of 76331730 is about 424.1977576665.

The spelling of 76331730 in words is "seventy-six million, three hundred thirty-one thousand, seven hundred thirty".