73390920 has 64 divisors (see below), whose sum is σ = 231768000. Its totient is φ = 18540288.

The previous prime is 73390903. The next prime is 73390927. The reversal of 73390920 is 2909337.

It is not an unprimeable number, because it can be changed into a prime (73390927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13815 + ... + 18374.

It is an arithmetic number, because the mean of its divisors is an integer number (3621375).

Almost surely, 2^73390920 is an apocalyptic number.

It is an amenable number.

73390920 is an abundant number, since it is smaller than the sum of its proper divisors (158377080).

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

73390920 is a wasteful number, since it uses less digits than its factorization.

73390920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32222 (or 32218 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 33.

The square root of 73390920 is about 8566.8500628878. The cubic root of 73390920 is about 418.6786135086.

The spelling of 73390920 in words is "seventy-three million, three hundred ninety thousand, nine hundred twenty".