1229882 has 16 divisors (see below), whose sum is σ = 1988712. Its totient is φ = 568320.

The previous prime is 1229873. The next prime is 1229897. The reversal of 1229882 is 2889221.

It is a Cunningham number, because it is equal to 1109²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 958441 + 271441 = 979^2 + 521^2 .

It is a super-3 number, since 3×1229882³ = 5580994454333750904, which contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1778 + ... + 2370.

2^1229882 is an apocalyptic number.

1229882 is a deficient number, since it is larger than the sum of its proper divisors (758830).

1229882 is a wasteful number, since it uses less digits than its factorization.

1229882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673.

The product of its digits is 4608, while the sum is 32.

The square root of 1229882 is about 1109.0004508565. Note that the first 3 decimals coincide. The cubic root of 1229882 is about 107.1407005703.

It can be divided in two parts, 122 and 9882, that multiplied together give a square (1205604 = 1098²).

The spelling of 1229882 in words is "one million, two hundred twenty-nine thousand, eight hundred eighty-two".