72385988 has 12 divisors (see below), whose sum is σ = 127526700. Its totient is φ = 35949792.

The previous prime is 72385981. The next prime is 72386003. The reversal of 72385988 is 88958327.

It can be written as a sum of positive squares in 2 ways, for example, as 34833604 + 37552384 = 5902^2 + 6128^2 .

It is a super-2 number, since 2×72385988² = 10479462517472288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72385981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60131 + ... + 61322.

It is an arithmetic number, because the mean of its divisors is an integer number (10627225).

Almost surely, 2^72385988 is an apocalyptic number.

It is an amenable number.

72385988 is a deficient number, since it is larger than the sum of its proper divisors (55140712).

72385988 is a wasteful number, since it uses less digits than its factorization.

72385988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121606 (or 121604 counting only the distinct ones).

The product of its digits is 967680, while the sum is 50.

The square root of 72385988 is about 8507.9955336142. The cubic root of 72385988 is about 416.7588543397.

The spelling of 72385988 in words is "seventy-two million, three hundred eighty-five thousand, nine hundred eighty-eight".