400341349 has 2 divisors, whose sum is σ = 400341350. Its totient is φ = 400341348.

The previous prime is 400341341. The next prime is 400341367. The reversal of 400341349 is 943143004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 370562500 + 29778849 = 19250^2 + 5457^2 .

It is a cyclic number.

It is not a de Polignac number, because 400341349 - 2³ = 400341341 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 (400341341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200170674 + 200170675.

It is an arithmetic number, because the mean of its divisors is an integer number (200170675).

Almost surely, 2^400341349 is an apocalyptic number.

It is an amenable number.

400341349 is a deficient number, since it is larger than the sum of its proper divisors (1).

400341349 is an equidigital number, since it uses as much as digits as its factorization.

400341349 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 28.

The square root of 400341349 is about 20008.5319051649. The cubic root of 400341349 is about 737.0158302149.

The spelling of 400341349 in words is "four hundred million, three hundred forty-one thousand, three hundred forty-nine".