73220356 has 24 divisors (see below), whose sum is σ = 140001120. Its totient is φ = 33230400.

The previous prime is 73220351. The next prime is 73220393. The reversal of 73220356 is 65302237.

It is a super-2 number, since 2×73220356² = 10722441065533472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (73220351) 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, 56071 + ... + 57361.

It is an arithmetic number, because the mean of its divisors is an integer number (5833380).

Almost surely, 2^73220356 is an apocalyptic number.

It is an amenable number.

73220356 is a deficient number, since it is larger than the sum of its proper divisors (66780764).

73220356 is a wasteful number, since it uses less digits than its factorization.

73220356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2595 (or 2593 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 73220356 is about 8556.8893880896. The cubic root of 73220356 is about 418.3540188957.

The spelling of 73220356 in words is "seventy-three million, two hundred twenty thousand, three hundred fifty-six".