73012432 has 40 divisors (see below), whose sum is σ = 146419200. Its totient is φ = 35248512.

The previous prime is 73012417. The next prime is 73012447. The reversal of 73012432 is 23421037.

It is an interprime number because it is at equal distance from previous prime (73012417) and next prime (73012447).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58794 + ... + 60022.

It is an arithmetic number, because the mean of its divisors is an integer number (3660480).

Almost surely, 2^73012432 is an apocalyptic number.

It is an amenable number.

73012432 is an abundant number, since it is smaller than the sum of its proper divisors (73406768).

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

73012432 is a wasteful number, since it uses less digits than its factorization.

73012432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1363 (or 1357 counting only the distinct ones).

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

The square root of 73012432 is about 8544.7312421164. The cubic root of 73012432 is about 417.9576431978.

Adding to 73012432 its reverse (23421037), we get a palindrome (96433469).

The spelling of 73012432 in words is "seventy-three million, twelve thousand, four hundred thirty-two".