404040899 has 2 divisors, whose sum is σ = 404040900. Its totient is φ = 404040898.

The previous prime is 404040883. The next prime is 404040953. The reversal of 404040899 is 998040404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 404040899 - 2⁴ = 404040883 is a prime.

It is not a weakly prime, because it can be changed into another prime (404040859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202020449 + 202020450.

It is an arithmetic number, because the mean of its divisors is an integer number (202020450).

Almost surely, 2^404040899 is an apocalyptic number.

404040899 is a deficient number, since it is larger than the sum of its proper divisors (1).

404040899 is an equidigital number, since it uses as much as digits as its factorization.

404040899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 404040899 is about 20100.7686171450. The cubic root of 404040899 is about 739.2791244985.

The spelling of 404040899 in words is "four hundred four million, forty thousand, eight hundred ninety-nine".