422671418 has 16 divisors (see below), whose sum is σ = 689410176. Its totient is φ = 193183920.

The previous prime is 422671399. The next prime is 422671421. The reversal of 422671418 is 814176224.

It is a super-2 number, since 2×422671418² = 357302255188261448, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76238 + ... + 81593.

It is an arithmetic number, because the mean of its divisors is an integer number (43088136).

Almost surely, 2^422671418 is an apocalyptic number.

422671418 is a deficient number, since it is larger than the sum of its proper divisors (266738758).

422671418 is a wasteful number, since it uses less digits than its factorization.

422671418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157949.

The product of its digits is 21504, while the sum is 35.

The square root of 422671418 is about 20558.9741475590. The cubic root of 422671418 is about 750.4716547343.

The spelling of 422671418 in words is "four hundred twenty-two million, six hundred seventy-one thousand, four hundred eighteen".