72374494 has 4 divisors (see below), whose sum is σ = 108561744. Its totient is φ = 36187246.

The previous prime is 72374473. The next prime is 72374503. The reversal of 72374494 is 49447327.

It is a semiprime because it is the product of two primes.

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 congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18093622 + ... + 18093625.

It is an arithmetic number, because the mean of its divisors is an integer number (27140436).

Almost surely, 2^72374494 is an apocalyptic number.

72374494 is a deficient number, since it is larger than the sum of its proper divisors (36187250).

72374494 is a wasteful number, since it uses less digits than its factorization.

72374494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36187249.

The product of its digits is 169344, while the sum is 40.

The square root of 72374494 is about 8507.3200245436. The cubic root of 72374494 is about 416.7367944541.

The spelling of 72374494 in words is "seventy-two million, three hundred seventy-four thousand, four hundred ninety-four".