1208827220 has 12 divisors (see below), whose sum is σ = 2538537204. Its totient is φ = 483530880.

The previous prime is 1208827201. The next prime is 1208827273. The reversal of 1208827220 is 227288021.

It can be written as a sum of positive squares in 2 ways, for example, as 488763664 + 720063556 = 22108^2 + 26834^2 .

It is a super-2 number, since 2×1208827220² = 2922526495625856800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 30220661 + ... + 30220700.

It is an arithmetic number, because the mean of its divisors is an integer number (211544767).

Almost surely, 2^1208827220 is an apocalyptic number.

1208827220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1208827220 is an abundant number, since it is smaller than the sum of its proper divisors (1329709984).

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

1208827220 is a wasteful number, since it uses less digits than its factorization.

1208827220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60441370 (or 60441368 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 1208827220 is about 34768.1926478786. The cubic root of 1208827220 is about 1065.2578508252.

The spelling of 1208827220 in words is "one billion, two hundred eight million, eight hundred twenty-seven thousand, two hundred twenty".