40831199 has 2 divisors, whose sum is σ = 40831200. Its totient is φ = 40831198.

The previous prime is 40831183. The next prime is 40831237. The reversal of 40831199 is 99113804.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40831199 - 2⁴ = 40831183 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40831099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20415599 + 20415600.

It is an arithmetic number, because the mean of its divisors is an integer number (20415600).

Almost surely, 2^40831199 is an apocalyptic number.

40831199 is a deficient number, since it is larger than the sum of its proper divisors (1).

40831199 is an equidigital number, since it uses as much as digits as its factorization.

40831199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 40831199 is about 6389.9294988286. The cubic root of 40831199 is about 344.3478515560.

The spelling of 40831199 in words is "forty million, eight hundred thirty-one thousand, one hundred ninety-nine".