40495864 has 32 divisors (see below), whose sum is σ = 78225840. Its totient is φ = 19641600.

The previous prime is 40495841. The next prime is 40495867. The reversal of 40495864 is 46859404.

It is a super-2 number, since 2×40495864² = 3279830002212992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40495867) 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, 108382 + ... + 108754.

Almost surely, 2^40495864 is an apocalyptic number.

It is an amenable number.

40495864 is a deficient number, since it is larger than the sum of its proper divisors (37729976).

40495864 is a wasteful number, since it uses less digits than its factorization.

40495864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751 (or 747 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 40495864 is about 6363.6360675325. The cubic root of 40495864 is about 343.4025821505.

The spelling of 40495864 in words is "forty million, four hundred ninety-five thousand, eight hundred sixty-four".