122828580 has 144 divisors (see below), whose sum is σ = 432117504. Its totient is φ = 27659520.

The previous prime is 122828569. The next prime is 122828581. The reversal of 122828580 is 85828221.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (122828581) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 88774 + ... + 90146.

It is an arithmetic number, because the mean of its divisors is an integer number (3000816).

Almost surely, 2^122828580 is an apocalyptic number.

122828580 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 122828580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216058752).

122828580 is an abundant number, since it is smaller than the sum of its proper divisors (309288924).

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

122828580 is a wasteful number, since it uses less digits than its factorization.

122828580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1466 (or 1461 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 36.

The square root of 122828580 is about 11082.8056014711. The cubic root of 122828580 is about 497.0878449688.

The spelling of 122828580 in words is "one hundred twenty-two million, eight hundred twenty-eight thousand, five hundred eighty".