73175920 has 40 divisors (see below), whose sum is σ = 171060480. Its totient is φ = 29111040.

The previous prime is 73175917. The next prime is 73175929. The reversal of 73175920 is 2957137.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73175929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12886 + ... + 17674.

It is an arithmetic number, because the mean of its divisors is an integer number (4276512).

Almost surely, 2^73175920 is an apocalyptic number.

It is an amenable number.

73175920 is an abundant number, since it is smaller than the sum of its proper divisors (97884560).

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

73175920 is a wasteful number, since it uses less digits than its factorization.

73175920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4993 (or 4987 counting only the distinct ones).

The product of its (nonzero) digits is 13230, while the sum is 34.

The square root of 73175920 is about 8554.2924897387. The cubic root of 73175920 is about 418.2693714830.

The spelling of 73175920 in words is "seventy-three million, one hundred seventy-five thousand, nine hundred twenty".