122485680 has 120 divisors (see below), whose sum is σ = 435588192. Its totient is φ = 30738432.

The previous prime is 122485679. The next prime is 122485709. The reversal of 122485680 is 86584221.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 7237 + ... + 17243.

Almost surely, 2^122485680 is an apocalyptic number.

122485680 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 122485680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217794096).

122485680 is an abundant number, since it is smaller than the sum of its proper divisors (313102512).

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

122485680 is a wasteful number, since it uses less digits than its factorization.

122485680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10043 (or 10034 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 122485680 is about 11067.3248800241. The cubic root of 122485680 is about 496.6248412046.

The spelling of 122485680 in words is "one hundred twenty-two million, four hundred eighty-five thousand, six hundred eighty".