422772042 has 64 divisors (see below), whose sum is σ = 1057536000. Its totient is φ = 109462080.

The previous prime is 422772041. The next prime is 422772061. The reversal of 422772042 is 240277224.

It is not an unprimeable number, because it can be changed into a prime (422772041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 164584 + ... + 167132.

It is an arithmetic number, because the mean of its divisors is an integer number (16524000).

Almost surely, 2^422772042 is an apocalyptic number.

422772042 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 422772042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (528768000).

422772042 is an abundant number, since it is smaller than the sum of its proper divisors (634763958).

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

422772042 is a wasteful number, since it uses less digits than its factorization.

422772042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2931.

The product of its (nonzero) digits is 12544, while the sum is 30.

The square root of 422772042 is about 20561.4212057435. The cubic root of 422772042 is about 750.5312041185.

The spelling of 422772042 in words is "four hundred twenty-two million, seven hundred seventy-two thousand, forty-two".