423122664 has 32 divisors (see below), whose sum is σ = 1065889440. Its totient is φ = 139963200.

The previous prime is 423122663. The next prime is 423122671. The reversal of 423122664 is 466221324.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (423122663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64147 + ... + 70434.

It is an arithmetic number, because the mean of its divisors is an integer number (33309045).

Almost surely, 2^423122664 is an apocalyptic number.

It is an amenable number.

423122664 is an abundant number, since it is smaller than the sum of its proper divisors (642766776).

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

423122664 is a wasteful number, since it uses less digits than its factorization.

423122664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134721 (or 134717 counting only the distinct ones).

The product of its digits is 13824, while the sum is 30.

The square root of 423122664 is about 20569.9456489316. The cubic root of 423122664 is about 750.7386287757.

Adding to 423122664 its reverse (466221324), we get a palindrome (889343988).

The spelling of 423122664 in words is "four hundred twenty-three million, one hundred twenty-two thousand, six hundred sixty-four".