1220097960 has 48 divisors (see below), whose sum is σ = 3965319540. Its totient is φ = 325359360.

The previous prime is 1220097959. The next prime is 1220098003. The reversal of 1220097960 is 697900221.

It can be written as a sum of positive squares in 2 ways, for example, as 1219825476 + 272484 = 34926^2 + 522^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1694221 + ... + 1694940.

Almost surely, 2^1220097960 is an apocalyptic number.

1220097960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1220097960 is an abundant number, since it is smaller than the sum of its proper divisors (2745221580).

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

1220097960 is a wasteful number, since it uses less digits than its factorization.

1220097960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3389178 (or 3389171 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 1220097960 is about 34929.9006583185. The cubic root of 1220097960 is about 1068.5583286109.

The spelling of 1220097960 in words is "one billion, two hundred twenty million, ninety-seven thousand, nine hundred sixty".