72385532 has 6 divisors (see below), whose sum is σ = 126674688. Its totient is φ = 36192764.

The previous prime is 72385519. The next prime is 72385543. The reversal of 72385532 is 23558327.

It is a junction number, because it is equal to n+sod(n) for n = 72385492 and 72385501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9048188 + ... + 9048195.

It is an arithmetic number, because the mean of its divisors is an integer number (21112448).

Almost surely, 2^72385532 is an apocalyptic number.

It is an amenable number.

72385532 is a deficient number, since it is larger than the sum of its proper divisors (54289156).

72385532 is a wasteful number, since it uses less digits than its factorization.

72385532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18096387 (or 18096385 counting only the distinct ones).

The product of its digits is 50400, while the sum is 35.

The square root of 72385532 is about 8507.9687352505. The cubic root of 72385532 is about 416.7579792052.

The spelling of 72385532 in words is "seventy-two million, three hundred eighty-five thousand, five hundred thirty-two".