402041313 has 28 divisors (see below), whose sum is σ = 638263908. Its totient is φ = 252253440.

The previous prime is 402041303. The next prime is 402041329. The reversal of 402041313 is 313140204.

It can be written as a sum of positive squares in 2 ways, for example, as 353139264 + 48902049 = 18792^2 + 6993^2 .

It is not a de Polignac number, because 402041313 - 2¹⁴ = 402024929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (402041303) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 3828 + ... + 28613.

Almost surely, 2^402041313 is an apocalyptic number.

It is an amenable number.

402041313 is a deficient number, since it is larger than the sum of its proper divisors (236222595).

402041313 is an equidigital number, since it uses as much as digits as its factorization.

402041313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32476 (or 32461 counting only the distinct ones).

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

The square root of 402041313 is about 20050.9678818754. The cubic root of 402041313 is about 738.0575505388.

Adding to 402041313 its reverse (313140204), we get a palindrome (715181517).

The spelling of 402041313 in words is "four hundred two million, forty-one thousand, three hundred thirteen".