40900999 has 2 divisors, whose sum is σ = 40901000. Its totient is φ = 40900998.

The previous prime is 40900973. The next prime is 40901011. The reversal of 40900999 is 99900904.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40900999 - 2⁵ = 40900967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40900919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20450499 + 20450500.

It is an arithmetic number, because the mean of its divisors is an integer number (20450500).

Almost surely, 2^40900999 is an apocalyptic number.

40900999 is a deficient number, since it is larger than the sum of its proper divisors (1).

40900999 is an equidigital number, since it uses as much as digits as its factorization.

40900999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26244, while the sum is 40.

The square root of 40900999 is about 6395.3888857520. The cubic root of 40900999 is about 344.5439581084.

The spelling of 40900999 in words is "forty million, nine hundred thousand, nine hundred ninety-nine".