122426180 has 72 divisors (see below), whose sum is σ = 278510400. Its totient is φ = 45182464.

The previous prime is 122426179. The next prime is 122426189. The reversal of 122426180 is 81624221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122426189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 340841 + ... + 341199.

It is an arithmetic number, because the mean of its divisors is an integer number (3868200).

Almost surely, 2^122426180 is an apocalyptic number.

122426180 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 122426180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139255200).

122426180 is an abundant number, since it is smaller than the sum of its proper divisors (156084220).

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

122426180 is a wasteful number, since it uses less digits than its factorization.

122426180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461 (or 442 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 122426180 is about 11064.6364603633. The cubic root of 122426180 is about 496.5444128529.

The spelling of 122426180 in words is "one hundred twenty-two million, four hundred twenty-six thousand, one hundred eighty".