72742514 has 32 divisors (see below), whose sum is σ = 123911424. Its totient is φ = 31775040.

The previous prime is 72742513. The next prime is 72742543. The reversal of 72742514 is 41524727.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (72742513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61004 + ... + 62184.

It is an arithmetic number, because the mean of its divisors is an integer number (3872232).

Almost surely, 2^72742514 is an apocalyptic number.

72742514 is a deficient number, since it is larger than the sum of its proper divisors (51168910).

72742514 is a wasteful number, since it uses less digits than its factorization.

72742514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1322.

The product of its digits is 15680, while the sum is 32.

The square root of 72742514 is about 8528.9222062345. The cubic root of 72742514 is about 417.4419611673.

The spelling of 72742514 in words is "seventy-two million, seven hundred forty-two thousand, five hundred fourteen".