73872224 has 12 divisors (see below), whose sum is σ = 145436004. Its totient is φ = 36936096.

The previous prime is 73872223. The next prime is 73872233. The reversal of 73872224 is 42227837.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73872221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1154222 + ... + 1154285.

It is an arithmetic number, because the mean of its divisors is an integer number (12119667).

Almost surely, 2^73872224 is an apocalyptic number.

It is an amenable number.

73872224 is a deficient number, since it is larger than the sum of its proper divisors (71563780).

73872224 is a wasteful number, since it uses less digits than its factorization.

73872224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2308517 (or 2308509 counting only the distinct ones).

The product of its digits is 37632, while the sum is 35.

The square root of 73872224 is about 8594.8952291462. The cubic root of 73872224 is about 419.5918635356.

The spelling of 73872224 in words is "seventy-three million, eight hundred seventy-two thousand, two hundred twenty-four".