40256402 has 16 divisors (see below), whose sum is σ = 63686400. Its totient is φ = 19031760.

The previous prime is 40256387. The next prime is 40256413. The reversal of 40256402 is 20465204.

It is an unprimeable number.

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, 37124 + ... + 38192.

It is an arithmetic number, because the mean of its divisors is an integer number (3980400).

Almost surely, 2^40256402 is an apocalyptic number.

40256402 is a deficient number, since it is larger than the sum of its proper divisors (23429998).

40256402 is a wasteful number, since it uses less digits than its factorization.

40256402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2081.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 40256402 is about 6344.7932984456. The cubic root of 40256402 is about 342.7243689428.

The spelling of 40256402 in words is "forty million, two hundred fifty-six thousand, four hundred two".