422655156 has 144 divisors (see below), whose sum is σ = 1410514560. Its totient is φ = 103311360.

The previous prime is 422655151. The next prime is 422655157. The reversal of 422655156 is 651556224.

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

It is a self number, because there is not a number n which added to its sum of digits gives 422655156.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422655151) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 42640 + ... + 51608.

It is an arithmetic number, because the mean of its divisors is an integer number (9795240).

Almost surely, 2^422655156 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 422655156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (705257280).

422655156 is an abundant number, since it is smaller than the sum of its proper divisors (987859404).

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

422655156 is a wasteful number, since it uses less digits than its factorization.

422655156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9014 (or 9009 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The square root of 422655156 is about 20558.5786473676. The cubic root of 422655156 is about 750.4620299793.

The spelling of 422655156 in words is "four hundred twenty-two million, six hundred fifty-five thousand, one hundred fifty-six".