122392440 has 96 divisors (see below), whose sum is σ = 401057280. Its totient is φ = 32368896.

The previous prime is 122392429. The next prime is 122392477. The reversal of 122392440 is 44293221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44382 + ... + 47058.

It is an arithmetic number, because the mean of its divisors is an integer number (4177680).

Almost surely, 2^122392440 is an apocalyptic number.

122392440 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 122392440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200528640).

122392440 is an abundant number, since it is smaller than the sum of its proper divisors (278664840).

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

122392440 is a wasteful number, since it uses less digits than its factorization.

122392440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2821 (or 2814 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 122392440 is about 11063.1116780045. Note that the first 3 decimals coincide. The cubic root of 122392440 is about 496.4987936676.

The spelling of 122392440 in words is "one hundred twenty-two million, three hundred ninety-two thousand, four hundred forty".