122409320 has 128 divisors (see below), whose sum is σ = 315843840. Its totient is φ = 42301440.

The previous prime is 122409281. The next prime is 122409337. The reversal of 122409320 is 23904221.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1188389 + ... + 1188491.

It is an arithmetic number, because the mean of its divisors is an integer number (2467530).

Almost surely, 2^122409320 is an apocalyptic number.

122409320 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 122409320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157921920).

122409320 is an abundant number, since it is smaller than the sum of its proper divisors (193434520).

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

122409320 is a wasteful number, since it uses less digits than its factorization.

122409320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235 (or 231 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 122409320 is about 11063.8745473726. The cubic root of 122409320 is about 496.5216178289.

The spelling of 122409320 in words is "one hundred twenty-two million, four hundred nine thousand, three hundred twenty".