122908380 has 96 divisors (see below), whose sum is σ = 406909440. Its totient is φ = 27121920.

The previous prime is 122908367. The next prime is 122908399. The reversal of 122908380 is 83809221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7135 + ... + 17225.

It is an arithmetic number, because the mean of its divisors is an integer number (4238640).

Almost surely, 2^122908380 is an apocalyptic number.

122908380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122908380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203454720).

122908380 is an abundant number, since it is smaller than the sum of its proper divisors (284001060).

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

122908380 is a wasteful number, since it uses less digits than its factorization.

122908380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10139 (or 10137 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 122908380 is about 11086.4051883377. The cubic root of 122908380 is about 497.1954719902.

The spelling of 122908380 in words is "one hundred twenty-two million, nine hundred eight thousand, three hundred eighty".