122870880 has 144 divisors (see below), whose sum is σ = 457473744. Its totient is φ = 29783040.

The previous prime is 122870879. The next prime is 122870893. The reversal of 122870880 is 88078221.

It is a tau number, because it is divible by the number of its divisors (144).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11962 + ... + 19718.

It is an arithmetic number, because the mean of its divisors is an integer number (3176901).

Almost surely, 2^122870880 is an apocalyptic number.

122870880 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 122870880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (228736872).

122870880 is an abundant number, since it is smaller than the sum of its proper divisors (334602864).

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

122870880 is a wasteful number, since it uses less digits than its factorization.

122870880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7789 (or 7778 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 36.

The square root of 122870880 is about 11084.7137987410. The cubic root of 122870880 is about 497.1449011863.

The spelling of 122870880 in words is "one hundred twenty-two million, eight hundred seventy thousand, eight hundred eighty".