402192227 has 2 divisors, whose sum is σ = 402192228. Its totient is φ = 402192226.

The previous prime is 402192221. The next prime is 402192229. The reversal of 402192227 is 722291204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 402192227 - 2⁴ = 402192211 is a prime.

Together with 402192229, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 402192227.

It is not a weakly prime, because it can be changed into another prime (402192221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201096113 + 201096114.

It is an arithmetic number, because the mean of its divisors is an integer number (201096114).

Almost surely, 2^402192227 is an apocalyptic number.

402192227 is a deficient number, since it is larger than the sum of its proper divisors (1).

402192227 is an equidigital number, since it uses as much as digits as its factorization.

402192227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 402192227 is about 20054.7307885197. The cubic root of 402192227 is about 738.1498870557.

The spelling of 402192227 in words is "four hundred two million, one hundred ninety-two thousand, two hundred twenty-seven".