1222988 has 24 divisors (see below), whose sum is σ = 2387280. Its totient is φ = 544320.

The previous prime is 1222967. The next prime is 1222993. The reversal of 1222988 is 8892221.

It is a congruent number.

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, 1103 + ... + 1913.

It is an arithmetic number, because the mean of its divisors is an integer number (99470).

2^1222988 is an apocalyptic number.

It is an amenable number.

1222988 is a deficient number, since it is larger than the sum of its proper divisors (1164292).

1222988 is a wasteful number, since it uses less digits than its factorization.

1222988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857 (or 855 counting only the distinct ones).

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

The square root of 1222988 is about 1105.8878785844. The cubic root of 1222988 is about 106.9401359608.

The spelling of 1222988 in words is "one million, two hundred twenty-two thousand, nine hundred eighty-eight".