73508428 has 18 divisors (see below), whose sum is σ = 149642556. Its totient is φ = 31503528.

The previous prime is 73508399. The next prime is 73508441. The reversal of 73508428 is 82480537.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 187326 + ... + 187717.

Almost surely, 2^73508428 is an apocalyptic number.

It is an amenable number.

73508428 is an abundant number, since it is smaller than the sum of its proper divisors (76134128).

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

73508428 is a wasteful number, since it uses less digits than its factorization.

73508428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375061 (or 375052 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 73508428 is about 8573.7056165931. The cubic root of 73508428 is about 418.9019465514.

The spelling of 73508428 in words is "seventy-three million, five hundred eight thousand, four hundred twenty-eight".