72739960 has 16 divisors (see below), whose sum is σ = 163665000. Its totient is φ = 29095968.

The previous prime is 72739943. The next prime is 72739969. The reversal of 72739960 is 6993727.

It is a super-2 number, since 2×72739960² = 10582203561603200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72739969) 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, 909210 + ... + 909289.

Almost surely, 2^72739960 is an apocalyptic number.

It is an amenable number.

72739960 is an abundant number, since it is smaller than the sum of its proper divisors (90925040).

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

72739960 is a wasteful number, since it uses less digits than its factorization.

72739960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1818510 (or 1818506 counting only the distinct ones).

The product of its (nonzero) digits is 142884, while the sum is 43.

The square root of 72739960 is about 8528.7724790851. The cubic root of 72739960 is about 417.4370756279.

The spelling of 72739960 in words is "seventy-two million, seven hundred thirty-nine thousand, nine hundred sixty".