442022051 has 2 divisors, whose sum is σ = 442022052. Its totient is φ = 442022050.

The previous prime is 442022047. The next prime is 442022071. The reversal of 442022051 is 150220244.

It is a happy number.

It is an a-pointer prime, because the next prime (442022071) can be obtained adding 442022051 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 442022051 - 2² = 442022047 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (442022071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221011025 + 221011026.

It is an arithmetic number, because the mean of its divisors is an integer number (221011026).

Almost surely, 2^442022051 is an apocalyptic number.

442022051 is a deficient number, since it is larger than the sum of its proper divisors (1).

442022051 is an equidigital number, since it uses as much as digits as its factorization.

442022051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 442022051 is about 21024.3204646428. The cubic root of 442022051 is about 761.7538276359.

Adding to 442022051 its reverse (150220244), we get a palindrome (592242295).

The spelling of 442022051 in words is "four hundred forty-two million, twenty-two thousand, fifty-one".