72205002 has 24 divisors (see below), whose sum is σ = 156929760. Its totient is φ = 23993640.

The previous prime is 72204989. The next prime is 72205033. The reversal of 72205002 is 20050227.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102 + ... + 12017.

It is an arithmetic number, because the mean of its divisors is an integer number (6538740).

Almost surely, 2^72205002 is an apocalyptic number.

72205002 is an abundant number, since it is smaller than the sum of its proper divisors (84724758).

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

72205002 is a wasteful number, since it uses less digits than its factorization.

72205002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12458 (or 12455 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 18.

The square root of 72205002 is about 8497.3526465600. The cubic root of 72205002 is about 416.4112250488.

Adding to 72205002 its reverse (20050227), we get a palindrome (92255229).

The spelling of 72205002 in words is "seventy-two million, two hundred five thousand, two".