423422120 has 64 divisors (see below), whose sum is σ = 1046355840. Its totient is φ = 152928000.

The previous prime is 423422113. The next prime is 423422143. The reversal of 423422120 is 21224324.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 423422092 and 423422101.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63254 + ... + 69626.

It is an arithmetic number, because the mean of its divisors is an integer number (16349310).

Almost surely, 2^423422120 is an apocalyptic number.

423422120 is a gapful number since it is divisible by the number (40) 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 423422120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (523177920).

423422120 is an abundant number, since it is smaller than the sum of its proper divisors (622933720).

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

423422120 is a wasteful number, since it uses less digits than its factorization.

423422120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6546 (or 6542 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 423422120 is about 20577.2233306634. The cubic root of 423422120 is about 750.9156934043.

Adding to 423422120 its reverse (21224324), we get a palindrome (444646444).

The spelling of 423422120 in words is "four hundred twenty-three million, four hundred twenty-two thousand, one hundred twenty".