72050660 has 72 divisors (see below), whose sum is σ = 175176960. Its totient is φ = 24805440.

The previous prime is 72050659. The next prime is 72050669. The reversal of 72050660 is 6605027.

It is not an unprimeable number, because it can be changed into a prime (72050669) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45197 + ... + 46763.

Almost surely, 2^72050660 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 72050660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87588480).

72050660 is an abundant number, since it is smaller than the sum of its proper divisors (103126300).

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

72050660 is a wasteful number, since it uses less digits than its factorization.

72050660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1617 (or 1604 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 72050660 is about 8488.2660184516. The cubic root of 72050660 is about 416.1143130746.

Adding to 72050660 its reverse (6605027), we get a palindrome (78655687).

The spelling of 72050660 in words is "seventy-two million, fifty thousand, six hundred sixty".