122280648 has 64 divisors (see below), whose sum is σ = 357519360. Its totient is φ = 34122816.

The previous prime is 122280629. The next prime is 122280667. The reversal of 122280648 is 846082221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (122280629) and next prime (122280667).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1240 + ... + 15687.

It is an arithmetic number, because the mean of its divisors is an integer number (5586240).

Almost surely, 2^122280648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122280648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178759680).

122280648 is an abundant number, since it is smaller than the sum of its proper divisors (235238712).

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

122280648 is a wasteful number, since it uses less digits than its factorization.

122280648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16986 (or 16982 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 122280648 is about 11058.0580573625. The cubic root of 122280648 is about 496.3475819837.

The spelling of 122280648 in words is "one hundred twenty-two million, two hundred eighty thousand, six hundred forty-eight".