72941512 has 32 divisors (see below), whose sum is σ = 161349120. Its totient is φ = 30251520.

The previous prime is 72941507. The next prime is 72941537. The reversal of 72941512 is 21514927.

It is a super-2 number, since 2×72941512² = 10640928345692288, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (31).

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, 19273 + ... + 22744.

It is an arithmetic number, because the mean of its divisors is an integer number (5042160).

Almost surely, 2^72941512 is an apocalyptic number.

It is an amenable number.

72941512 is an abundant number, since it is smaller than the sum of its proper divisors (88407608).

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

72941512 is a wasteful number, since it uses less digits than its factorization.

72941512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42061 (or 42057 counting only the distinct ones).

The product of its digits is 5040, while the sum is 31.

The square root of 72941512 is about 8540.5803081524. The cubic root of 72941512 is about 417.8222728333.

The spelling of 72941512 in words is "seventy-two million, nine hundred forty-one thousand, five hundred twelve".