402441007 has 2 divisors, whose sum is σ = 402441008. Its totient is φ = 402441006.

The previous prime is 402440981. The next prime is 402441023. The reversal of 402441007 is 700144204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 402441007 - 2²⁷ = 268223279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402441037) 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, 201220503 + 201220504.

It is an arithmetic number, because the mean of its divisors is an integer number (201220504).

Almost surely, 2^402441007 is an apocalyptic number.

402441007 is a deficient number, since it is larger than the sum of its proper divisors (1).

402441007 is an equidigital number, since it uses as much as digits as its factorization.

402441007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 402441007 is about 20060.9323561992. The cubic root of 402441007 is about 738.3020523356.

The spelling of 402441007 in words is "four hundred two million, four hundred forty-one thousand, seven".