72338516 has 6 divisors (see below), whose sum is σ = 126592410. Its totient is φ = 36169256.

The previous prime is 72338509. The next prime is 72338521. The reversal of 72338516 is 61583327.

It can be written as a sum of positive squares in only one way, i.e., 70224400 + 2114116 = 8380^2 + 1454^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 9042311 + ... + 9042318.

It is an arithmetic number, because the mean of its divisors is an integer number (21098735).

Almost surely, 2^72338516 is an apocalyptic number.

It is an amenable number.

72338516 is a deficient number, since it is larger than the sum of its proper divisors (54253894).

72338516 is a wasteful number, since it uses less digits than its factorization.

72338516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18084633 (or 18084631 counting only the distinct ones).

The product of its digits is 30240, while the sum is 35.

The square root of 72338516 is about 8505.2052297402. The cubic root of 72338516 is about 416.6677284951.

The spelling of 72338516 in words is "seventy-two million, three hundred thirty-eight thousand, five hundred sixteen".