73328928 has 24 divisors (see below), whose sum is σ = 192488688. Its totient is φ = 24442944.

The previous prime is 73328921. The next prime is 73328933. The reversal of 73328928 is 82982337.

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 73328928.

It is not an unprimeable number, because it can be changed into a prime (73328921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 381826 + ... + 382017.

It is an arithmetic number, because the mean of its divisors is an integer number (8020362).

Almost surely, 2^73328928 is an apocalyptic number.

It is an amenable number.

73328928 is an abundant number, since it is smaller than the sum of its proper divisors (119159760).

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

73328928 is a wasteful number, since it uses less digits than its factorization.

73328928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763856 (or 763848 counting only the distinct ones).

The product of its digits is 145152, while the sum is 42.

The square root of 73328928 is about 8563.2311658626. The cubic root of 73328928 is about 418.5606968514.

The spelling of 73328928 in words is "seventy-three million, three hundred twenty-eight thousand, nine hundred twenty-eight".