422942740 has 48 divisors (see below), whose sum is σ = 982606464. Its totient is φ = 151625600.

The previous prime is 422942627. The next prime is 422942743. The reversal of 422942740 is 47249224.

It is a happy number.

It is a super-2 number, since 2×422942740² = 357761122637415200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 422942696 and 422942705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422942743) 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, 2082 + ... + 29158.

It is an arithmetic number, because the mean of its divisors is an integer number (20470968).

Almost surely, 2^422942740 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 422942740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (491303232).

422942740 is an abundant number, since it is smaller than the sum of its proper divisors (559663724).

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

422942740 is a wasteful number, since it uses less digits than its factorization.

422942740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27168 (or 27166 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 422942740 is about 20565.5717158556. The cubic root of 422942740 is about 750.6322017597.

The spelling of 422942740 in words is "four hundred twenty-two million, nine hundred forty-two thousand, seven hundred forty".