40636456 has 32 divisors (see below), whose sum is σ = 87468480. Its totient is φ = 17337600.

The previous prime is 40636439. The next prime is 40636481. The reversal of 40636456 is 65463604.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11991 + ... + 15001.

It is an arithmetic number, because the mean of its divisors is an integer number (2733390).

Almost surely, 2^40636456 is an apocalyptic number.

It is an amenable number.

40636456 is an abundant number, since it is smaller than the sum of its proper divisors (46832024).

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

40636456 is a wasteful number, since it uses less digits than its factorization.

40636456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3265 (or 3261 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 34.

The square root of 40636456 is about 6374.6730112218. The cubic root of 40636456 is about 343.7995271448.

The spelling of 40636456 in words is "forty million, six hundred thirty-six thousand, four hundred fifty-six".