422181243 has 48 divisors (see below), whose sum is σ = 679311360. Its totient is φ = 250526400.

The previous prime is 422181229. The next prime is 422181251. The reversal of 422181243 is 342181224.

It is not a de Polignac number, because 422181243 - 2²⁰ = 421132667 is a prime.

It is not an unprimeable number, because it can be changed into a prime (422181203) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1569313 + ... + 1569581.

It is an arithmetic number, because the mean of its divisors is an integer number (14152320).

Almost surely, 2^422181243 is an apocalyptic number.

422181243 is a deficient number, since it is larger than the sum of its proper divisors (257130117).

422181243 is a wasteful number, since it uses less digits than its factorization.

422181243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560 (or 557 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

The square root of 422181243 is about 20547.0494962172. The cubic root of 422181243 is about 750.1814334390.

The spelling of 422181243 in words is "four hundred twenty-two million, one hundred eighty-one thousand, two hundred forty-three".