40000899 has 4 divisors (see below), whose sum is σ = 53334536. Its totient is φ = 26667264.

The previous prime is 40000897. The next prime is 40000921. The reversal of 40000899 is 99800004.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 40000899 - 2¹ = 40000897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40000897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6666814 + ... + 6666819.

It is an arithmetic number, because the mean of its divisors is an integer number (13333634).

Almost surely, 2^40000899 is an apocalyptic number.

40000899 is a deficient number, since it is larger than the sum of its proper divisors (13333637).

40000899 is a wasteful number, since it uses less digits than its factorization.

40000899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13333636.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 40000899 is about 6324.6263921278. The cubic root of 40000899 is about 341.9977514301.

The spelling of 40000899 in words is "forty million, eight hundred ninety-nine", and thus it is an aban number.