400241313 has 12 divisors (see below), whose sum is σ = 587604628. Its totient is φ = 262452960.

The previous prime is 400241299. The next prime is 400241323. The reversal of 400241313 is 313142004.

It can be written as a sum of positive squares in 2 ways, for example, as 5702544 + 394538769 = 2388^2 + 19863^2 .

It is not a de Polignac number, because 400241313 - 2⁴ = 400241297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400241323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 363970 + ... + 365067.

Almost surely, 2^400241313 is an apocalyptic number.

It is an amenable number.

400241313 is a deficient number, since it is larger than the sum of its proper divisors (187363315).

400241313 is a wasteful number, since it uses less digits than its factorization.

400241313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729104 (or 729101 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 400241313 is about 20006.0319153999. The cubic root of 400241313 is about 736.9544373913.

Adding to 400241313 its reverse (313142004), we get a palindrome (713383317).

The spelling of 400241313 in words is "four hundred million, two hundred forty-one thousand, three hundred thirteen".