402978119 has 2 divisors, whose sum is σ = 402978120. Its totient is φ = 402978118.

The previous prime is 402978109. The next prime is 402978151. The reversal of 402978119 is 911879204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 402978119 - 2¹⁶ = 402912583 is a prime.

It is a super-2 number, since 2×402978119² = 324782728785556322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402978109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201489059 + 201489060.

It is an arithmetic number, because the mean of its divisors is an integer number (201489060).

Almost surely, 2^402978119 is an apocalyptic number.

402978119 is a deficient number, since it is larger than the sum of its proper divisors (1).

402978119 is an equidigital number, since it uses as much as digits as its factorization.

402978119 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 41.

The square root of 402978119 is about 20074.3149073636. The cubic root of 402978119 is about 738.6303609976.

The spelling of 402978119 in words is "four hundred two million, nine hundred seventy-eight thousand, one hundred nineteen".