122635398 has 16 divisors (see below), whose sum is σ = 250975296. Its totient is φ = 39927720.

The previous prime is 122635363. The next prime is 122635417. The reversal of 122635398 is 893536221.

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 7 ways as a sum of consecutive naturals, for example, 237408 + ... + 237923.

It is an arithmetic number, because the mean of its divisors is an integer number (15685956).

Almost surely, 2^122635398 is an apocalyptic number.

122635398 is an abundant number, since it is smaller than the sum of its proper divisors (128339898).

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

122635398 is a wasteful number, since it uses less digits than its factorization.

122635398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475379.

The product of its digits is 77760, while the sum is 39.

The square root of 122635398 is about 11074.0867795047. The cubic root of 122635398 is about 496.8271054029.

The spelling of 122635398 in words is "one hundred twenty-two million, six hundred thirty-five thousand, three hundred ninety-eight".