40928564 has 6 divisors (see below), whose sum is σ = 71624994. Its totient is φ = 20464280.

The previous prime is 40928509. The next prime is 40928567. The reversal of 40928564 is 46582904.

It can be written as a sum of positive squares in only one way, i.e., 28622500 + 12306064 = 5350^2 + 3508^2 .

It is a super-2 number, since 2×40928564² = 3350294702204192, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40928567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5116067 + ... + 5116074.

It is an arithmetic number, because the mean of its divisors is an integer number (11937499).

Almost surely, 2^40928564 is an apocalyptic number.

It is an amenable number.

40928564 is a deficient number, since it is larger than the sum of its proper divisors (30696430).

40928564 is a wasteful number, since it uses less digits than its factorization.

40928564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10232145 (or 10232143 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 40928564 is about 6397.5435910981. The cubic root of 40928564 is about 344.6213418860.

The spelling of 40928564 in words is "forty million, nine hundred twenty-eight thousand, five hundred sixty-four".