422945712 has 200 divisors, whose sum is σ = 1460549376. Its totient is φ = 115530624.

The previous prime is 422945693. The next prime is 422945713. The reversal of 422945712 is 217549224.

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

It is not an unprimeable number, because it can be changed into a prime (422945713) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 207643 + ... + 209669.

Almost surely, 2^422945712 is an apocalyptic number.

422945712 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422945712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (730274688).

422945712 is an abundant number, since it is smaller than the sum of its proper divisors (1037603664).

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

422945712 is a wasteful number, since it uses less digits than its factorization.

422945712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2077 (or 2062 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 422945712 is about 20565.6439724119. The cubic root of 422945712 is about 750.6339599753.

The spelling of 422945712 in words is "four hundred twenty-two million, nine hundred forty-five thousand, seven hundred twelve".