122889294 has 72 divisors (see below), whose sum is σ = 309975120. Its totient is φ = 35038080.

The previous prime is 122889289. The next prime is 122889307. The reversal of 122889294 is 492988221.

It is a happy number.

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 35 ways as a sum of consecutive naturals, for example, 35367 + ... + 38685.

It is an arithmetic number, because the mean of its divisors is an integer number (4305210).

Almost surely, 2^122889294 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122889294, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154987560).

122889294 is an abundant number, since it is smaller than the sum of its proper divisors (187085826).

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

122889294 is a wasteful number, since it uses less digits than its factorization.

122889294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3366 (or 3352 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 122889294 is about 11085.5443709364. The cubic root of 122889294 is about 497.1697347594.

The spelling of 122889294 in words is "one hundred twenty-two million, eight hundred eighty-nine thousand, two hundred ninety-four".