122718040 has 16 divisors (see below), whose sum is σ = 276115680. Its totient is φ = 49087200.

The previous prime is 122717999. The next prime is 122718059. The reversal of 122718040 is 40817221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 122717996 and 122718014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1533936 + ... + 1534015.

It is an arithmetic number, because the mean of its divisors is an integer number (17257230).

Almost surely, 2^122718040 is an apocalyptic number.

122718040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122718040 is an abundant number, since it is smaller than the sum of its proper divisors (153397640).

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

122718040 is a wasteful number, since it uses less digits than its factorization.

122718040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3067962 (or 3067958 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 122718040 is about 11077.8174745750. The cubic root of 122718040 is about 496.9386815786.

The spelling of 122718040 in words is "one hundred twenty-two million, seven hundred eighteen thousand, forty".