1220598560 has 24 divisors (see below), whose sum is σ = 2883664476. Its totient is φ = 488239360.

The previous prime is 1220598553. The next prime is 1220598583. The reversal of 1220598560 is 658950221.

It can be written as a sum of positive squares in 2 ways, for example, as 1194670096 + 25928464 = 34564^2 + 5092^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3814211 + ... + 3814530.

Almost surely, 2^1220598560 is an apocalyptic number.

1220598560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1220598560 is an abundant number, since it is smaller than the sum of its proper divisors (1663065916).

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

1220598560 is an equidigital number, since it uses as much as digits as its factorization.

1220598560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7628756 (or 7628748 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 1220598560 is about 34937.0657039197. The cubic root of 1220598560 is about 1068.7044499812.

The spelling of 1220598560 in words is "one billion, two hundred twenty million, five hundred ninety-eight thousand, five hundred sixty".