40036564 has 12 divisors (see below), whose sum is σ = 74185524. Its totient is φ = 18840704.

The previous prime is 40036543. The next prime is 40036597. The reversal of 40036564 is 46563004.

It can be written as a sum of positive squares in 2 ways, for example, as 37112464 + 2924100 = 6092^2 + 1710^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 294319 + ... + 294454.

It is an arithmetic number, because the mean of its divisors is an integer number (6182127).

Almost surely, 2^40036564 is an apocalyptic number.

It is an amenable number.

40036564 is a deficient number, since it is larger than the sum of its proper divisors (34148960).

40036564 is a wasteful number, since it uses less digits than its factorization.

40036564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588794 (or 588792 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 40036564 is about 6327.4452980646. The cubic root of 40036564 is about 342.0993635341.

Adding to 40036564 its reverse (46563004), we get a palindrome (86599568).

The spelling of 40036564 in words is "forty million, thirty-six thousand, five hundred sixty-four".