72374458 has 32 divisors (see below), whose sum is σ = 123782400. Its totient is φ = 31461696.

The previous prime is 72374417. The next prime is 72374473. The reversal of 72374458 is 85447327.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 72374458.

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 15 ways as a sum of consecutive naturals, for example, 117760 + ... + 118372.

It is an arithmetic number, because the mean of its divisors is an integer number (3868200).

Almost surely, 2^72374458 is an apocalyptic number.

72374458 is a deficient number, since it is larger than the sum of its proper divisors (51407942).

72374458 is a wasteful number, since it uses less digits than its factorization.

72374458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 886.

The product of its digits is 188160, while the sum is 40.

The square root of 72374458 is about 8507.3179087184. The cubic root of 72374458 is about 416.7367253574.

The spelling of 72374458 in words is "seventy-two million, three hundred seventy-four thousand, four hundred fifty-eight".