42264427 has 2 divisors, whose sum is σ = 42264428. Its totient is φ = 42264426.

The previous prime is 42264403. The next prime is 42264437. The reversal of 42264427 is 72446224.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42264427 - 2¹⁵ = 42231659 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42264437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21132213 + 21132214.

It is an arithmetic number, because the mean of its divisors is an integer number (21132214).

Almost surely, 2^42264427 is an apocalyptic number.

42264427 is a deficient number, since it is larger than the sum of its proper divisors (1).

42264427 is an equidigital number, since it uses as much as digits as its factorization.

42264427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21504, while the sum is 31.

The square root of 42264427 is about 6501.1096745094. The cubic root of 42264427 is about 348.3306272286.

The spelling of 42264427 in words is "forty-two million, two hundred sixty-four thousand, four hundred twenty-seven".