72492776 has 16 divisors (see below), whose sum is σ = 136299840. Its totient is φ = 36146160.

The previous prime is 72492701. The next prime is 72492793. The reversal of 72492776 is 67729427.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

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, 9410 + ... + 15281.

It is an arithmetic number, because the mean of its divisors is an integer number (8518740).

Almost surely, 2^72492776 is an apocalyptic number.

It is an amenable number.

72492776 is a deficient number, since it is larger than the sum of its proper divisors (63807064).

72492776 is a wasteful number, since it uses less digits than its factorization.

72492776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25064 (or 25060 counting only the distinct ones).

The product of its digits is 296352, while the sum is 44.

The square root of 72492776 is about 8514.2689645089. The cubic root of 72492776 is about 416.9636959042.

The spelling of 72492776 in words is "seventy-two million, four hundred ninety-two thousand, seven hundred seventy-six".