422154120 has 64 divisors (see below), whose sum is σ = 1275624000. Its totient is φ = 111760128.

The previous prime is 422154071. The next prime is 422154133. The reversal of 422154120 is 21451224.

It is a super-4 number, since 4×422154120⁴ (a number of 36 digits) contains 4444 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4026 + ... + 29334.

It is an arithmetic number, because the mean of its divisors is an integer number (19931625).

Almost surely, 2^422154120 is an apocalyptic number.

422154120 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 422154120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (637812000).

422154120 is an abundant number, since it is smaller than the sum of its proper divisors (853469880).

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

422154120 is a wasteful number, since it uses less digits than its factorization.

422154120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25462 (or 25458 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 422154120 is about 20546.3894638450. The cubic root of 422154120 is about 750.1653679797.

The spelling of 422154120 in words is "four hundred twenty-two million, one hundred fifty-four thousand, one hundred twenty".