72090662 has 24 divisors (see below), whose sum is σ = 126590616. Its totient is φ = 30699648.

The previous prime is 72090619. The next prime is 72090673. The reversal of 72090662 is 26609027.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 13718 + ... + 18230.

It is an arithmetic number, because the mean of its divisors is an integer number (5274609).

Almost surely, 2^72090662 is an apocalyptic number.

72090662 is a deficient number, since it is larger than the sum of its proper divisors (54499954).

72090662 is a wasteful number, since it uses less digits than its factorization.

72090662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4692 (or 4685 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 72090662 is about 8490.6220031279. The cubic root of 72090662 is about 416.1913067030.

Adding to 72090662 its reverse (26609027), we get a palindrome (98699689).

The spelling of 72090662 in words is "seventy-two million, ninety thousand, six hundred sixty-two".