422048664 has 96 divisors (see below), whose sum is σ = 1245560400. Its totient is φ = 132387840.

The previous prime is 422048659. The next prime is 422048701. The reversal of 422048664 is 466840224.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59044 + ... + 65804.

Almost surely, 2^422048664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422048664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (622780200).

422048664 is an abundant number, since it is smaller than the sum of its proper divisors (823511736).

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

422048664 is a wasteful number, since it uses less digits than its factorization.

422048664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6810 (or 6783 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 36.

The square root of 422048664 is about 20543.8230132563. The cubic root of 422048664 is about 750.1028978821.

Adding to 422048664 its reverse (466840224), we get a palindrome (888888888).

The spelling of 422048664 in words is "four hundred twenty-two million, forty-eight thousand, six hundred sixty-four".