40256452 has 12 divisors (see below), whose sum is σ = 70653100. Its totient is φ = 20069856.

The previous prime is 40256429. The next prime is 40256477. The reversal of 40256452 is 25465204.

It can be written as a sum of positive squares in 2 ways, for example, as 27625536 + 12630916 = 5256^2 + 3554^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40256452.

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 3 ways as a sum of consecutive naturals, for example, 13023 + ... + 15814.

Almost surely, 2^40256452 is an apocalyptic number.

It is an amenable number.

40256452 is a deficient number, since it is larger than the sum of its proper divisors (30396648).

40256452 is a wasteful number, since it uses less digits than its factorization.

40256452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29190 (or 29188 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 40256452 is about 6344.7972386830. The cubic root of 40256452 is about 342.7245108350.

The spelling of 40256452 in words is "forty million, two hundred fifty-six thousand, four hundred fifty-two".