74876820 has 24 divisors (see below), whose sum is σ = 209655264. Its totient is φ = 19967136.

The previous prime is 74876819. The next prime is 74876827. The reversal of 74876820 is 2867847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74876827) by changing a digit.

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, 623914 + ... + 624033.

It is an arithmetic number, because the mean of its divisors is an integer number (8735636).

Almost surely, 2^74876820 is an apocalyptic number.

It is an amenable number.

74876820 is an abundant number, since it is smaller than the sum of its proper divisors (134778444).

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

74876820 is a wasteful number, since it uses less digits than its factorization.

74876820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1247959 (or 1247957 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 42.

The square root of 74876820 is about 8653.1393147227. The cubic root of 74876820 is about 421.4853305038.

The spelling of 74876820 in words is "seventy-four million, eight hundred seventy-six thousand, eight hundred twenty".