402816371 has 2 divisors, whose sum is σ = 402816372. Its totient is φ = 402816370.

The previous prime is 402816361. The next prime is 402816383. The reversal of 402816371 is 173618204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 402816371 - 2⁶ = 402816307 is a prime.

It is a super-2 number, since 2×402816371² = 324522057491219282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (402816311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201408185 + 201408186.

It is an arithmetic number, because the mean of its divisors is an integer number (201408186).

Almost surely, 2^402816371 is an apocalyptic number.

402816371 is a deficient number, since it is larger than the sum of its proper divisors (1).

402816371 is an equidigital number, since it uses as much as digits as its factorization.

402816371 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 402816371 is about 20070.2857727537. The cubic root of 402816371 is about 738.5315235619.

The spelling of 402816371 in words is "four hundred two million, eight hundred sixteen thousand, three hundred seventy-one".