402418607 has 2 divisors, whose sum is σ = 402418608. Its totient is φ = 402418606.

The previous prime is 402418591. The next prime is 402418609. The reversal of 402418607 is 706814204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 402418607 - 2⁴ = 402418591 is a prime.

Together with 402418609, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_21458282 and since 402418607 and 21458282 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402418609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201209303 + 201209304.

It is an arithmetic number, because the mean of its divisors is an integer number (201209304).

Almost surely, 2^402418607 is an apocalyptic number.

402418607 is a deficient number, since it is larger than the sum of its proper divisors (1).

402418607 is an equidigital number, since it uses as much as digits as its factorization.

402418607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 402418607 is about 20060.3740493541. The cubic root of 402418607 is about 738.2883540357.

The spelling of 402418607 in words is "four hundred two million, four hundred eighteen thousand, six hundred seven".