72090536 has 32 divisors (see below), whose sum is σ = 155280000. Its totient is φ = 30735936.

The previous prime is 72090517. The next prime is 72090559. The reversal of 72090536 is 63509027.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7910 + ... + 14378.

It is an arithmetic number, because the mean of its divisors is an integer number (4852500).

Almost surely, 2^72090536 is an apocalyptic number.

It is an amenable number.

72090536 is an abundant number, since it is smaller than the sum of its proper divisors (83189464).

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

72090536 is a wasteful number, since it uses less digits than its factorization.

72090536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6681 (or 6677 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 72090536 is about 8490.6145831736. The cubic root of 72090536 is about 416.1910642299.

The spelling of 72090536 in words is "seventy-two million, ninety thousand, five hundred thirty-six".