74440256 has 56 divisors (see below), whose sum is σ = 165140640. Its totient is φ = 32998400.

The previous prime is 74440253. The next prime is 74440277. The reversal of 74440256 is 65204447.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (74440253) 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, 27575 + ... + 30153.

It is an arithmetic number, because the mean of its divisors is an integer number (2948940).

Almost surely, 2^74440256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74440256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82570320).

74440256 is an abundant number, since it is smaller than the sum of its proper divisors (90700384).

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

74440256 is a wasteful number, since it uses less digits than its factorization.

74440256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2643 (or 2633 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 32.

The square root of 74440256 is about 8627.8766796936. The cubic root of 74440256 is about 420.6645865375.

The spelling of 74440256 in words is "seventy-four million, four hundred forty thousand, two hundred fifty-six".