422181604 has 54 divisors (see below), whose sum is σ = 850243254. Its totient is φ = 183306240.

The previous prime is 422181601. The next prime is 422181607. The reversal of 422181604 is 406181224.

It is an interprime number because it is at equal distance from previous prime (422181601) and next prime (422181607).

It can be written as a sum of positive squares in 9 ways, for example, as 71368704 + 350812900 = 8448^2 + 18730^2 .

It is not an unprimeable number, because it can be changed into a prime (422181601) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 194284 + ... + 196444.

Almost surely, 2^422181604 is an apocalyptic number.

It is an amenable number.

422181604 is an abundant number, since it is smaller than the sum of its proper divisors (428061650).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

422181604 is a wasteful number, since it uses less digits than its factorization.

422181604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2225 (or 2193 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 422181604 is about 20547.0582809316. The cubic root of 422181604 is about 750.1816472614.

The spelling of 422181604 in words is "four hundred twenty-two million, one hundred eighty-one thousand, six hundred four".