122642964 has 96 divisors (see below), whose sum is σ = 342034560. Its totient is φ = 37863936.

The previous prime is 122642957. The next prime is 122642983. The reversal of 122642964 is 469246221.

122642964 is a `hidden beast` number, since 1 + 2 + 2 + 642 + 9 + 6 + 4 = 666.

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 122514 + ... + 123510.

It is an arithmetic number, because the mean of its divisors is an integer number (3562860).

Almost surely, 2^122642964 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 122642964, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171017280).

122642964 is an abundant number, since it is smaller than the sum of its proper divisors (219391596).

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

122642964 is a wasteful number, since it uses less digits than its factorization.

122642964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094 (or 1086 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 122642964 is about 11074.4283825397. The cubic root of 122642964 is about 496.8373224545.

The spelling of 122642964 in words is "one hundred twenty-two million, six hundred forty-two thousand, nine hundred sixty-four".