422107281 has 24 divisors (see below), whose sum is σ = 634676224. Its totient is φ = 280344240.

The previous prime is 422107271. The next prime is 422107291. The reversal of 422107281 is 182701224.

It is an interprime number because it is at equal distance from previous prime (422107271) and next prime (422107291).

It is not a de Polignac number, because 422107281 - 2²⁵ = 388552849 is a prime.

It is a super-2 number, since 2×422107281² = 356349113346425922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422107271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64176 + ... + 70446.

Almost surely, 2^422107281 is an apocalyptic number.

It is an amenable number.

422107281 is a deficient number, since it is larger than the sum of its proper divisors (212568943).

422107281 is an equidigital number, since it uses as much as digits as its factorization.

422107281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6563 (or 6551 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 422107281 is about 20545.2495969263. The cubic root of 422107281 is about 750.1376227451.

The spelling of 422107281 in words is "four hundred twenty-two million, one hundred seven thousand, two hundred eighty-one".