72770492 has 12 divisors (see below), whose sum is σ = 128352000. Its totient is φ = 36098496.

The previous prime is 72770479. The next prime is 72770501. The reversal of 72770492 is 29407727.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71117 + ... + 72132.

It is an arithmetic number, because the mean of its divisors is an integer number (10696000).

Almost surely, 2^72770492 is an apocalyptic number.

It is an amenable number.

72770492 is a deficient number, since it is larger than the sum of its proper divisors (55581508).

72770492 is a wasteful number, since it uses less digits than its factorization.

72770492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143380 (or 143378 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 38.

The square root of 72770492 is about 8530.5622323502. The cubic root of 72770492 is about 417.4954727179.

The spelling of 72770492 in words is "seventy-two million, seven hundred seventy thousand, four hundred ninety-two".