74399894 has 16 divisors (see below), whose sum is σ = 116644320. Its totient is φ = 35523840.

The previous prime is 74399893. The next prime is 74399903. The reversal of 74399894 is 49899347.

It is a happy number.

It is a super-2 number, since 2×74399894² = 11070688454422472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74399891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41864 + ... + 43604.

It is an arithmetic number, because the mean of its divisors is an integer number (7290270).

Almost surely, 2^74399894 is an apocalyptic number.

74399894 is a deficient number, since it is larger than the sum of its proper divisors (42244426).

74399894 is a wasteful number, since it uses less digits than its factorization.

74399894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2695.

The product of its digits is 1959552, while the sum is 53.

The square root of 74399894 is about 8625.5373165966. The cubic root of 74399894 is about 420.5885437502.

The spelling of 74399894 in words is "seventy-four million, three hundred ninety-nine thousand, eight hundred ninety-four".