1229988 has 12 divisors (see below), whose sum is σ = 2870000. Its totient is φ = 409992.

The previous prime is 1229981. The next prime is 1229993. The reversal of 1229988 is 8899221.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (1229981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51238 + ... + 51261.

2^1229988 is an apocalyptic number.

It is an amenable number.

1229988 is an abundant number, since it is smaller than the sum of its proper divisors (1640012).

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

1229988 is a wasteful number, since it uses less digits than its factorization.

1229988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102506 (or 102504 counting only the distinct ones).

The product of its digits is 20736, while the sum is 39.

The square root of 1229988 is about 1109.0482406099. The cubic root of 1229988 is about 107.1437785318.

The spelling of 1229988 in words is "one million, two hundred twenty-nine thousand, nine hundred eighty-eight".