40008599 has 16 divisors (see below), whose sum is σ = 43497792. Its totient is φ = 36661248.

The previous prime is 40008593. The next prime is 40008629. The reversal of 40008599 is 99580004.

It is not a de Polignac number, because 40008599 - 2²⁰ = 38960023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40008593) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127667 + ... + 127979.

It is an arithmetic number, because the mean of its divisors is an integer number (2718612).

Almost surely, 2^40008599 is an apocalyptic number.

40008599 is a deficient number, since it is larger than the sum of its proper divisors (3489193).

40008599 is a wasteful number, since it uses less digits than its factorization.

40008599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 40008599 is about 6325.2350944451. The cubic root of 40008599 is about 342.0196943847.

The spelling of 40008599 in words is "forty million, eight thousand, five hundred ninety-nine".