73031224 has 16 divisors (see below), whose sum is σ = 156495600. Its totient is φ = 31299072.

The previous prime is 73031183. The next prime is 73031227. The reversal of 73031224 is 42213037.

It is a junction number, because it is equal to n+sod(n) for n = 73031195 and 73031204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73031227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 652009 + ... + 652120.

It is an arithmetic number, because the mean of its divisors is an integer number (9780975).

Almost surely, 2^73031224 is an apocalyptic number.

It is an amenable number.

73031224 is an abundant number, since it is smaller than the sum of its proper divisors (83464376).

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

73031224 is a wasteful number, since it uses less digits than its factorization.

73031224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1304142 (or 1304138 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 73031224 is about 8545.8307963591. The cubic root of 73031224 is about 417.9934982162.

The spelling of 73031224 in words is "seventy-three million, thirty-one thousand, two hundred twenty-four".