422220064 has 72 divisors (see below), whose sum is σ = 981635760. Its totient is φ = 178206336.

The previous prime is 422220059. The next prime is 422220119. The reversal of 422220064 is 460022224.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103047 + ... + 107065.

It is an arithmetic number, because the mean of its divisors is an integer number (13633830).

Almost surely, 2^422220064 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 422220064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (490817880).

422220064 is an abundant number, since it is smaller than the sum of its proper divisors (559415696).

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

422220064 is a wasteful number, since it uses less digits than its factorization.

422220064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4110 (or 4095 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 422220064 is about 20547.9941600147. The cubic root of 422220064 is about 750.2044266450.

Adding to 422220064 its reverse (460022224), we get a palindrome (882242288).

The spelling of 422220064 in words is "four hundred twenty-two million, two hundred twenty thousand, sixty-four".