72749462 has 8 divisors (see below), whose sum is σ = 109179576. Its totient is φ = 36356272.

The previous prime is 72749459. The next prime is 72749473. The reversal of 72749462 is 26494727.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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, 3623 + ... + 12594.

It is an arithmetic number, because the mean of its divisors is an integer number (13647447).

Almost surely, 2^72749462 is an apocalyptic number.

72749462 is a deficient number, since it is larger than the sum of its proper divisors (36430114).

72749462 is a wasteful number, since it uses less digits than its factorization.

72749462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18462.

The product of its digits is 169344, while the sum is 41.

The square root of 72749462 is about 8529.3295164391. The cubic root of 72749462 is about 417.4552513981.

The spelling of 72749462 in words is "seventy-two million, seven hundred forty-nine thousand, four hundred sixty-two".