402922501 has 2 divisors, whose sum is σ = 402922502. Its totient is φ = 402922500.

The previous prime is 402922477. The next prime is 402922537. The reversal of 402922501 is 105229204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 377369476 + 25553025 = 19426^2 + 5055^2 .

It is a cyclic number.

It is not a de Polignac number, because 402922501 - 2⁹ = 402921989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402922571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201461250 + 201461251.

It is an arithmetic number, because the mean of its divisors is an integer number (201461251).

Almost surely, 2^402922501 is an apocalyptic number.

It is an amenable number.

402922501 is a deficient number, since it is larger than the sum of its proper divisors (1).

402922501 is an equidigital number, since it uses as much as digits as its factorization.

402922501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 402922501 is about 20072.9295569929. The cubic root of 402922501 is about 738.5963781488.

The spelling of 402922501 in words is "four hundred two million, nine hundred twenty-two thousand, five hundred one".