1042209 has 24 divisors (see below), whose sum is σ = 1752192. Its totient is φ = 584640.

The previous prime is 1042193. The next prime is 1042211. The reversal of 1042209 is 9022401.

It is not a de Polignac number, because 1042209 - 2⁴ = 1042193 is a prime.

It is a Curzon number.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 1042191 and 1042200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042259) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4357 + ... + 4589.

It is an arithmetic number, because the mean of its divisors is an integer number (73008).

2^1042209 is an apocalyptic number.

It is an amenable number.

1042209 is a deficient number, since it is larger than the sum of its proper divisors (709983).

1042209 is a wasteful number, since it uses less digits than its factorization.

1042209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317 (or 314 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1042209 is about 1020.8863795741. The cubic root of 1042209 is about 101.3876226387.

The spelling of 1042209 in words is "one million, forty-two thousand, two hundred nine".