400441199 has 2 divisors, whose sum is σ = 400441200. Its totient is φ = 400441198.

The previous prime is 400441183. The next prime is 400441211. The reversal of 400441199 is 991144004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 400441199 - 2⁴ = 400441183 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400441159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200220599 + 200220600.

It is an arithmetic number, because the mean of its divisors is an integer number (200220600).

Almost surely, 2^400441199 is an apocalyptic number.

400441199 is a deficient number, since it is larger than the sum of its proper divisors (1).

400441199 is an equidigital number, since it uses as much as digits as its factorization.

400441199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 400441199 is about 20011.0269351675. The cubic root of 400441199 is about 737.0770986911.

The spelling of 400441199 in words is "four hundred million, four hundred forty-one thousand, one hundred ninety-nine".