72943660 has 36 divisors (see below), whose sum is σ = 161684208. Its totient is φ = 27639072.

The previous prime is 72943657. The next prime is 72943667. The reversal of 72943660 is 6634927.

It is not an unprimeable number, because it can be changed into a prime (72943667) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2169 + ... + 12271.

It is an arithmetic number, because the mean of its divisors is an integer number (4491228).

Almost surely, 2^72943660 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72943660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80842104).

72943660 is an abundant number, since it is smaller than the sum of its proper divisors (88740548).

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

72943660 is a wasteful number, since it uses less digits than its factorization.

72943660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10150 (or 10129 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 72943660 is about 8540.7060598056. The cubic root of 72943660 is about 417.8263741715.

The spelling of 72943660 in words is "seventy-two million, nine hundred forty-three thousand, six hundred sixty".