1220882 has 8 divisors (see below), whose sum is σ = 1972236. Its totient is φ = 563472.

The previous prime is 1220839. The next prime is 1220893. The reversal of 1220882 is 2880221.

It can be written as a sum of positive squares in 2 ways, for example, as 1104601 + 116281 = 1051^2 + 341^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23453 + ... + 23504.

2^1220882 is an apocalyptic number.

1220882 is a deficient number, since it is larger than the sum of its proper divisors (751354).

1220882 is a wasteful number, since it uses less digits than its factorization.

1220882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46972.

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 1220882 is about 1104.9352922230. The cubic root of 1220882 is about 106.8787166269.

The spelling of 1220882 in words is "one million, two hundred twenty thousand, eight hundred eighty-two".