400349241 has 12 divisors (see below), whose sum is σ = 579701460. Its totient is φ = 266244480.

The previous prime is 400349237. The next prime is 400349251. The reversal of 400349241 is 142943004.

It can be written as a sum of positive squares in 2 ways, for example, as 360848016 + 39501225 = 18996^2 + 6285^2 .

It is not a de Polignac number, because 400349241 - 2² = 400349237 is a prime.

It is not an unprimeable number, because it can be changed into a prime (400349251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50700 + ... + 58061.

It is an arithmetic number, because the mean of its divisors is an integer number (48308455).

Almost surely, 2^400349241 is an apocalyptic number.

It is an amenable number.

400349241 is a deficient number, since it is larger than the sum of its proper divisors (179352219).

400349241 is a wasteful number, since it uses less digits than its factorization.

400349241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109176 (or 109173 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 400349241 is about 20008.7291200616. The cubic root of 400349241 is about 737.0206731576.

The spelling of 400349241 in words is "four hundred million, three hundred forty-nine thousand, two hundred forty-one".