72494666 has 16 divisors (see below), whose sum is σ = 114912000. Its totient is φ = 34230768.

The previous prime is 72494659. The next prime is 72494699. The reversal of 72494666 is 66649427.

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 7 ways as a sum of consecutive naturals, for example, 6341 + ... + 13608.

It is an arithmetic number, because the mean of its divisors is an integer number (7182000).

Almost surely, 2^72494666 is an apocalyptic number.

72494666 is a deficient number, since it is larger than the sum of its proper divisors (42417334).

72494666 is a wasteful number, since it uses less digits than its factorization.

72494666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20053.

The product of its digits is 435456, while the sum is 44.

The square root of 72494666 is about 8514.3799539368. The cubic root of 72494666 is about 416.9673195045.

The spelling of 72494666 in words is "seventy-two million, four hundred ninety-four thousand, six hundred sixty-six".