74399423 has 8 divisors (see below), whose sum is σ = 85090848. Its totient is φ = 63723744.

The previous prime is 74399419. The next prime is 74399431. The reversal of 74399423 is 32499347.

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

It is not a de Polignac number, because 74399423 - 2² = 74399419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74399453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9065 + ... + 15197.

It is an arithmetic number, because the mean of its divisors is an integer number (10636356).

Almost surely, 2^74399423 is an apocalyptic number.

74399423 is a deficient number, since it is larger than the sum of its proper divisors (10691425).

74399423 is a wasteful number, since it uses less digits than its factorization.

74399423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7873.

The product of its digits is 163296, while the sum is 41.

The square root of 74399423 is about 8625.5100139064. The cubic root of 74399423 is about 420.5876562148.

The spelling of 74399423 in words is "seventy-four million, three hundred ninety-nine thousand, four hundred twenty-three".