1220582088 has 128 divisors (see below), whose sum is σ = 3761856000. Its totient is φ = 363562560.

The previous prime is 1220582053. The next prime is 1220582089. The reversal of 1220582088 is 8802850221.

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 (1220582089) 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 31 ways as a sum of consecutive naturals, for example, 135831 + ... + 144537.

It is an arithmetic number, because the mean of its divisors is an integer number (29389500).

Almost surely, 2^1220582088 is an apocalyptic number.

1220582088 is a gapful number since it is divisible by the number (18) 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 1220582088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1880928000).

1220582088 is an abundant number, since it is smaller than the sum of its proper divisors (2541273912).

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

1220582088 is a wasteful number, since it uses less digits than its factorization.

1220582088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8792 (or 8782 counting only the distinct ones).

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

The square root of 1220582088 is about 34936.8299649525. The cubic root of 1220582088 is about 1068.6996425642.

The spelling of 1220582088 in words is "one billion, two hundred twenty million, five hundred eighty-two thousand, eighty-eight".