40474256 has 40 divisors (see below), whose sum is σ = 85411200. Its totient is φ = 18506880.

The previous prime is 40474253. The next prime is 40474261. The reversal of 40474256 is 65247404.

It is not an unprimeable number, because it can be changed into a prime (40474253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6521 + ... + 11111.

It is an arithmetic number, because the mean of its divisors is an integer number (2135280).

Almost surely, 2^40474256 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 40474256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42705600).

40474256 is an abundant number, since it is smaller than the sum of its proper divisors (44936944).

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

40474256 is a wasteful number, since it uses less digits than its factorization.

40474256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4647 (or 4641 counting only the distinct ones).

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

The square root of 40474256 is about 6361.9380694879. The cubic root of 40474256 is about 343.3414930875.

The spelling of 40474256 in words is "forty million, four hundred seventy-four thousand, two hundred fifty-six".