74400323 has 4 divisors (see below), whose sum is σ = 74418648. Its totient is φ = 74382000.

The previous prime is 74400301. The next prime is 74400349. The reversal of 74400323 is 32300447.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 74400323 - 2¹⁶ = 74334787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74400373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53 + ... + 12198.

It is an arithmetic number, because the mean of its divisors is an integer number (18604662).

Almost surely, 2^74400323 is an apocalyptic number.

74400323 is a deficient number, since it is larger than the sum of its proper divisors (18325).

74400323 is a wasteful number, since it uses less digits than its factorization.

74400323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18324.

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 74400323 is about 8625.5621845767. The cubic root of 74400323 is about 420.5893521391.

The spelling of 74400323 in words is "seventy-four million, four hundred thousand, three hundred twenty-three".