42002227 has 2 divisors, whose sum is σ = 42002228. Its totient is φ = 42002226.

The previous prime is 42002201. The next prime is 42002231. The reversal of 42002227 is 72220024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42002227 - 2¹⁹ = 41477939 is a prime.

It is not a weakly prime, because it can be changed into another prime (42002827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21001113 + 21001114.

It is an arithmetic number, because the mean of its divisors is an integer number (21001114).

Almost surely, 2^42002227 is an apocalyptic number.

42002227 is a deficient number, since it is larger than the sum of its proper divisors (1).

42002227 is an equidigital number, since it uses as much as digits as its factorization.

42002227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 19.

The square root of 42002227 is about 6480.9125129105. The cubic root of 42002227 is about 347.6088081192.

The spelling of 42002227 in words is "forty-two million, two thousand, two hundred twenty-seven".