402274307 has 2 divisors, whose sum is σ = 402274308. Its totient is φ = 402274306.

The previous prime is 402274277. The next prime is 402274319. The reversal of 402274307 is 703472204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 402274307 - 2¹⁶ = 402208771 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 402274307.

It is not a weakly prime, because it can be changed into another prime (402274337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201137153 + 201137154.

It is an arithmetic number, because the mean of its divisors is an integer number (201137154).

Almost surely, 2^402274307 is an apocalyptic number.

402274307 is a deficient number, since it is larger than the sum of its proper divisors (1).

402274307 is an equidigital number, since it uses as much as digits as its factorization.

402274307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9408, while the sum is 29.

The square root of 402274307 is about 20056.7770840681. Note that the first 3 decimals coincide. The cubic root of 402274307 is about 738.2000978898.

The spelling of 402274307 in words is "four hundred two million, two hundred seventy-four thousand, three hundred seven".