74406456 has 24 divisors (see below), whose sum is σ = 201517680. Its totient is φ = 24802128.

The previous prime is 74406443. The next prime is 74406457. The reversal of 74406456 is 65460447.

74406456 is a `hidden beast` number, since 7 + 4 + 4 + 0 + 645 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 74406456.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74406457) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 516640 + ... + 516783.

It is an arithmetic number, because the mean of its divisors is an integer number (8396570).

Almost surely, 2^74406456 is an apocalyptic number.

It is an amenable number.

74406456 is an abundant number, since it is smaller than the sum of its proper divisors (127111224).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74406456 is a wasteful number, since it uses less digits than its factorization.

74406456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033435 (or 1033428 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The square root of 74406456 is about 8625.9176903098. The cubic root of 74406456 is about 420.6009085568.

The spelling of 74406456 in words is "seventy-four million, four hundred six thousand, four hundred fifty-six".