40564299 has 8 divisors (see below), whose sum is σ = 54123520. Its totient is φ = 27023976.

The previous prime is 40564291. The next prime is 40564313. The reversal of 40564299 is 99246504.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40564299 - 2³ = 40564291 is a prime.

It is a super-2 number, since 2×40564299² = 3290924706722802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40564291) 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, 1434 + ... + 9120.

It is an arithmetic number, because the mean of its divisors is an integer number (6765440).

Almost surely, 2^40564299 is an apocalyptic number.

40564299 is a deficient number, since it is larger than the sum of its proper divisors (13559221).

40564299 is a wasteful number, since it uses less digits than its factorization.

40564299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9449.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 40564299 is about 6369.0108337166. The cubic root of 40564299 is about 343.5959148980.

The spelling of 40564299 in words is "forty million, five hundred sixty-four thousand, two hundred ninety-nine".