402413213 has 2 divisors, whose sum is σ = 402413214. Its totient is φ = 402413212.

The previous prime is 402413203. The next prime is 402413243. The reversal of 402413213 is 312314204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 322453849 + 79959364 = 17957^2 + 8942^2 .

It is a cyclic number.

It is not a de Polignac number, because 402413213 - 2⁶ = 402413149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402413203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201206606 + 201206607.

It is an arithmetic number, because the mean of its divisors is an integer number (201206607).

Almost surely, 2^402413213 is an apocalyptic number.

It is an amenable number.

402413213 is a deficient number, since it is larger than the sum of its proper divisors (1).

402413213 is an equidigital number, since it uses as much as digits as its factorization.

402413213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 402413213 is about 20060.2396047505. The cubic root of 402413213 is about 738.2850553602.

Adding to 402413213 its reverse (312314204), we get a palindrome (714727417).

Subtracting from 402413213 its reverse (312314204), we obtain a palindrome (90099009).

The spelling of 402413213 in words is "four hundred two million, four hundred thirteen thousand, two hundred thirteen".