72542276 has 24 divisors (see below), whose sum is σ = 132874560. Its totient is φ = 34587872.

The previous prime is 72542269. The next prime is 72542317. The reversal of 72542276 is 67224527.

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, 34775 + ... + 36801.

It is an arithmetic number, because the mean of its divisors is an integer number (5536440).

Almost surely, 2^72542276 is an apocalyptic number.

It is an amenable number.

72542276 is a deficient number, since it is larger than the sum of its proper divisors (60332284).

72542276 is a wasteful number, since it uses less digits than its factorization.

72542276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2443 (or 2441 counting only the distinct ones).

The product of its digits is 47040, while the sum is 35.

The square root of 72542276 is about 8517.1753533669. The cubic root of 72542276 is about 417.0585789536.

The spelling of 72542276 in words is "seventy-two million, five hundred forty-two thousand, two hundred seventy-six".