40900099 has 2 divisors, whose sum is σ = 40900100. Its totient is φ = 40900098.

The previous prime is 40900091. The next prime is 40900109. The reversal of 40900099 is 99000904.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40900099 - 2³ = 40900091 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40900099.

It is not a weakly prime, because it can be changed into another prime (40900091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20450049 + 20450050.

It is an arithmetic number, because the mean of its divisors is an integer number (20450050).

Almost surely, 2^40900099 is an apocalyptic number.

40900099 is a deficient number, since it is larger than the sum of its proper divisors (1).

40900099 is an equidigital number, since it uses as much as digits as its factorization.

40900099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 40900099 is about 6395.3185221692. The cubic root of 40900099 is about 344.5414309342.

The spelling of 40900099 in words is "forty million, nine hundred thousand, ninety-nine".