402232247 has 2 divisors, whose sum is σ = 402232248. Its totient is φ = 402232246.

The previous prime is 402232219. The next prime is 402232279. The reversal of 402232247 is 742232204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 402232247 - 2⁶ = 402232183 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 (402232447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201116123 + 201116124.

It is an arithmetic number, because the mean of its divisors is an integer number (201116124).

Almost surely, 2^402232247 is an apocalyptic number.

402232247 is a deficient number, since it is larger than the sum of its proper divisors (1).

402232247 is an equidigital number, since it uses as much as digits as its factorization.

402232247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 26.

The square root of 402232247 is about 20055.7285332645. The cubic root of 402232247 is about 738.1743693610.

The spelling of 402232247 in words is "four hundred two million, two hundred thirty-two thousand, two hundred forty-seven".