402230357 has 2 divisors, whose sum is σ = 402230358. Its totient is φ = 402230356.

The previous prime is 402230351. The next prime is 402230429. The reversal of 402230357 is 753032204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 223981156 + 178249201 = 14966^2 + 13351^2 .

It is a cyclic number.

It is not a de Polignac number, because 402230357 - 2¹² = 402226261 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402230351) 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 as a sum of consecutive naturals, namely, 201115178 + 201115179.

It is an arithmetic number, because the mean of its divisors is an integer number (201115179).

Almost surely, 2^402230357 is an apocalyptic number.

It is an amenable number.

402230357 is a deficient number, since it is larger than the sum of its proper divisors (1).

402230357 is an equidigital number, since it uses as much as digits as its factorization.

402230357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 26.

The square root of 402230357 is about 20055.6814145020. The cubic root of 402230357 is about 738.1732131867.

The spelling of 402230357 in words is "four hundred two million, two hundred thirty thousand, three hundred fifty-seven".