73220574 has 32 divisors (see below), whose sum is σ = 172763136. Its totient is φ = 20244960.

The previous prime is 73220551. The next prime is 73220579. The reversal of 73220574 is 47502237.

It is a super-2 number, since 2×73220574² = 10722504913778952, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73220579) 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, 26817 + ... + 29420.

It is an arithmetic number, because the mean of its divisors is an integer number (5398848).

Almost surely, 2^73220574 is an apocalyptic number.

73220574 is an abundant number, since it is smaller than the sum of its proper divisors (99542562).

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

73220574 is a wasteful number, since it uses less digits than its factorization.

73220574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56280.

The product of its (nonzero) digits is 11760, while the sum is 30.

The square root of 73220574 is about 8556.9021263539. The cubic root of 73220574 is about 418.3544340857.

The spelling of 73220574 in words is "seventy-three million, two hundred twenty thousand, five hundred seventy-four".