122635842 has 64 divisors (see below), whose sum is σ = 296801280. Its totient is φ = 32999616.

The previous prime is 122635829. The next prime is 122635847. The reversal of 122635842 is 248536221.

It is not an unprimeable number, because it can be changed into a prime (122635847) 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 31 ways as a sum of consecutive naturals, for example, 180808 + ... + 181484.

It is an arithmetic number, because the mean of its divisors is an integer number (4637520).

Almost surely, 2^122635842 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122635842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148400640).

122635842 is an abundant number, since it is smaller than the sum of its proper divisors (174165438).

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

122635842 is a wasteful number, since it uses less digits than its factorization.

122635842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 935.

The product of its digits is 23040, while the sum is 33.

The square root of 122635842 is about 11074.1068262863. The cubic root of 122635842 is about 496.8277049877.

The spelling of 122635842 in words is "one hundred twenty-two million, six hundred thirty-five thousand, eight hundred forty-two".