400109341 has 2 divisors, whose sum is σ = 400109342. Its totient is φ = 400109340.

The previous prime is 400109323. The next prime is 400109377. The reversal of 400109341 is 143901004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 283922500 + 116186841 = 16850^2 + 10779^2 .

It is a cyclic number.

It is not a de Polignac number, because 400109341 - 2⁹ = 400108829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400109141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200054670 + 200054671.

It is an arithmetic number, because the mean of its divisors is an integer number (200054671).

Almost surely, 2^400109341 is an apocalyptic number.

It is an amenable number.

400109341 is a deficient number, since it is larger than the sum of its proper divisors (1).

400109341 is an equidigital number, since it uses as much as digits as its factorization.

400109341 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 400109341 is about 20002.7333382216. The cubic root of 400109341 is about 736.8734295598.

The spelling of 400109341 in words is "four hundred million, one hundred nine thousand, three hundred forty-one".