72902532 has 12 divisors (see below), whose sum is σ = 170105936. Its totient is φ = 24300840.

The previous prime is 72902509. The next prime is 72902561. The reversal of 72902532 is 23520927.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×72902532² = 10629558344022048, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 72902532.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3037594 + ... + 3037617.

Almost surely, 2^72902532 is an apocalyptic number.

It is an amenable number.

72902532 is an abundant number, since it is smaller than the sum of its proper divisors (97203404).

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

72902532 is a wasteful number, since it uses less digits than its factorization.

72902532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6075218 (or 6075216 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 72902532 is about 8538.2979568530. The cubic root of 72902532 is about 417.7478313901.

The spelling of 72902532 in words is "seventy-two million, nine hundred two thousand, five hundred thirty-two".