422713944 has 64 divisors (see below), whose sum is σ = 1183248000. Its totient is φ = 139819680.

The previous prime is 422713943. The next prime is 422713969. The reversal of 422713944 is 449317224.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is a junction number, because it is equal to n+sod(n) for n = 422713899 and 422713908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422713943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20827 + ... + 35765.

It is an arithmetic number, because the mean of its divisors is an integer number (18488250).

Almost surely, 2^422713944 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 422713944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (591624000).

422713944 is an abundant number, since it is smaller than the sum of its proper divisors (760534056).

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

422713944 is a wasteful number, since it uses less digits than its factorization.

422713944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15085 (or 15075 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 422713944 is about 20560.0083657571. The cubic root of 422713944 is about 750.4968228168.

The spelling of 422713944 in words is "four hundred twenty-two million, seven hundred thirteen thousand, nine hundred forty-four".