40108899 has 8 divisors (see below), whose sum is σ = 56624400. Its totient is φ = 25166336.

The previous prime is 40108889. The next prime is 40108927. The reversal of 40108899 is 99880104.

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

It is a cyclic number.

It is not a de Polignac number, because 40108899 - 2⁴ = 40108883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40108879) 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, 393174 + ... + 393275.

It is an arithmetic number, because the mean of its divisors is an integer number (7078050).

Almost surely, 2^40108899 is an apocalyptic number.

40108899 is a deficient number, since it is larger than the sum of its proper divisors (16515501).

40108899 is a wasteful number, since it uses less digits than its factorization.

40108899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786469.

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 40108899 is about 6333.1586905746. The cubic root of 40108899 is about 342.3052658978.

The spelling of 40108899 in words is "forty million, one hundred eight thousand, eight hundred ninety-nine".