40213564 has 6 divisors (see below), whose sum is σ = 70373744. Its totient is φ = 20106780.

The previous prime is 40213559. The next prime is 40213571. The reversal of 40213564 is 46531204.

40213564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a zygodrome in base 7.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5026692 + ... + 5026699.

Almost surely, 2^40213564 is an apocalyptic number.

It is an amenable number.

40213564 is a deficient number, since it is larger than the sum of its proper divisors (30160180).

40213564 is a wasteful number, since it uses less digits than its factorization.

40213564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10053395 (or 10053393 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 40213564 is about 6341.4165609901. The cubic root of 40213564 is about 342.6027581631.

Adding to 40213564 its reverse (46531204), we get a palindrome (86744768).

The spelling of 40213564 in words is "forty million, two hundred thirteen thousand, five hundred sixty-four".