73470224 has 20 divisors (see below), whose sum is σ = 147258060. Its totient is φ = 35468160.

The previous prime is 73470167. The next prime is 73470233. The reversal of 73470224 is 42207437.

It can be written as a sum of positive squares in 2 ways, for example, as 51380224 + 22090000 = 7168^2 + 4700^2 .

It is a super-2 number, since 2×73470224² = 10795747629220352, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78707 + ... + 79634.

It is an arithmetic number, because the mean of its divisors is an integer number (7362903).

Almost surely, 2^73470224 is an apocalyptic number.

It is an amenable number.

73470224 is an abundant number, since it is smaller than the sum of its proper divisors (73787836).

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

73470224 is a wasteful number, since it uses less digits than its factorization.

73470224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158378 (or 158372 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 29.

The square root of 73470224 is about 8571.4773522421. The cubic root of 73470224 is about 418.8293630228.

The spelling of 73470224 in words is "seventy-three million, four hundred seventy thousand, two hundred twenty-four".