73708320 has 96 divisors (see below), whose sum is σ = 265362048. Its totient is φ = 16846848.

The previous prime is 73708309. The next prime is 73708337. The reversal of 73708320 is 2380737.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7609 + ... + 14328.

It is an arithmetic number, because the mean of its divisors is an integer number (2764188).

Almost surely, 2^73708320 is an apocalyptic number.

73708320 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

73708320 is an abundant number, since it is smaller than the sum of its proper divisors (191653728).

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

73708320 is a wasteful number, since it uses less digits than its factorization.

73708320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21962 (or 21954 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 73708320 is about 8585.3549722769. The cubic root of 73708320 is about 419.2813105876.

The spelling of 73708320 in words is "seventy-three million, seven hundred eight thousand, three hundred twenty".