402231419 has 2 divisors, whose sum is σ = 402231420. Its totient is φ = 402231418.

The previous prime is 402231397. The next prime is 402231451. The reversal of 402231419 is 914132204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 402231419 - 2¹² = 402227323 is a prime.

It is a super-2 number, since 2×402231419² = 323580228861507122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (402231019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201115709 + 201115710.

It is an arithmetic number, because the mean of its divisors is an integer number (201115710).

Almost surely, 2^402231419 is an apocalyptic number.

402231419 is a deficient number, since it is larger than the sum of its proper divisors (1).

402231419 is an equidigital number, since it uses as much as digits as its factorization.

402231419 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 402231419 is about 20055.7078907726. The cubic root of 402231419 is about 738.1738628470.

The spelling of 402231419 in words is "four hundred two million, two hundred thirty-one thousand, four hundred nineteen".