402414247 has 2 divisors, whose sum is σ = 402414248. Its totient is φ = 402414246.

The previous prime is 402414239. The next prime is 402414251. The reversal of 402414247 is 742414204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 402414247 - 2³ = 402414239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402414277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201207123 + 201207124.

It is an arithmetic number, because the mean of its divisors is an integer number (201207124).

Almost surely, 2^402414247 is an apocalyptic number.

402414247 is a deficient number, since it is larger than the sum of its proper divisors (1).

402414247 is an equidigital number, since it uses as much as digits as its factorization.

402414247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7168, while the sum is 28.

The square root of 402414247 is about 20060.2653771081. The cubic root of 402414247 is about 738.2856877004.

The spelling of 402414247 in words is "four hundred two million, four hundred fourteen thousand, two hundred forty-seven".