40456564 has 6 divisors (see below), whose sum is σ = 70798994. Its totient is φ = 20228280.

The previous prime is 40456547. The next prime is 40456573. The reversal of 40456564 is 46565404.

It can be written as a sum of positive squares in only one way, i.e., 40424164 + 32400 = 6358^2 + 180^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5057067 + ... + 5057074.

Almost surely, 2^40456564 is an apocalyptic number.

It is an amenable number.

40456564 is a deficient number, since it is larger than the sum of its proper divisors (30342430).

40456564 is a wasteful number, since it uses less digits than its factorization.

40456564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10114145 (or 10114143 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

The square root of 40456564 is about 6360.5474607144. The cubic root of 40456564 is about 343.2914589539.

It can be divided in two parts, 4045 and 6564, that added together give a square (10609 = 103²).

The spelling of 40456564 in words is "forty million, four hundred fifty-six thousand, five hundred sixty-four".