402334013 has 2 divisors, whose sum is σ = 402334014. Its totient is φ = 402334012.

The previous prime is 402334003. The next prime is 402334057. The reversal of 402334013 is 310433204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 231587524 + 170746489 = 15218^2 + 13067^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402334013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402334003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201167006 + 201167007.

It is an arithmetic number, because the mean of its divisors is an integer number (201167007).

Almost surely, 2^402334013 is an apocalyptic number.

It is an amenable number.

402334013 is a deficient number, since it is larger than the sum of its proper divisors (1).

402334013 is an equidigital number, since it uses as much as digits as its factorization.

402334013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 402334013 is about 20058.2654534234. The cubic root of 402334013 is about 738.2366175762.

Adding to 402334013 its reverse (310433204), we get a palindrome (712767217).

The spelling of 402334013 in words is "four hundred two million, three hundred thirty-four thousand, thirteen".