402224297 has 2 divisors, whose sum is σ = 402224298. Its totient is φ = 402224296.

The previous prime is 402224257. The next prime is 402224311. The reversal of 402224297 is 792422204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 370909081 + 31315216 = 19259^2 + 5596^2 .

It is a cyclic number.

It is not a de Polignac number, because 402224297 - 2⁸ = 402224041 is a prime.

It is not a weakly prime, because it can be changed into another prime (402224257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201112148 + 201112149.

It is an arithmetic number, because the mean of its divisors is an integer number (201112149).

Almost surely, 2^402224297 is an apocalyptic number.

It is an amenable number.

402224297 is a deficient number, since it is larger than the sum of its proper divisors (1).

402224297 is an equidigital number, since it uses as much as digits as its factorization.

402224297 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 402224297 is about 20055.5303345486. The cubic root of 402224297 is about 738.1695060638.

The spelling of 402224297 in words is "four hundred two million, two hundred twenty-four thousand, two hundred ninety-seven".