1220170632 has 16 divisors (see below), whose sum is σ = 3050426640. Its totient is φ = 406723536.

The previous prime is 1220170613. The next prime is 1220170643. The reversal of 1220170632 is 2360710221.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 50840443 = 1220170632 / (1 + 2 + 2 + 0 + 1 + 7 + 0 + 6 + 3 + 2).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 25420198 + ... + 25420245.

It is an arithmetic number, because the mean of its divisors is an integer number (190651665).

Almost surely, 2^1220170632 is an apocalyptic number.

1220170632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1220170632 is an abundant number, since it is smaller than the sum of its proper divisors (1830256008).

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

1220170632 is a wasteful number, since it uses less digits than its factorization.

1220170632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50840452 (or 50840448 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 1220170632 is about 34930.9408977199. The cubic root of 1220170632 is about 1068.5795435001.

Adding to 1220170632 its reverse (2360710221), we get a palindrome (3580880853).

The spelling of 1220170632 in words is "one billion, two hundred twenty million, one hundred seventy thousand, six hundred thirty-two".