1102409 has 16 divisors (see below), whose sum is σ = 1397760. Its totient is φ = 844560.

The previous prime is 1102397. The next prime is 1102411. The reversal of 1102409 is 9042011.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1102409 - 2⁴ = 1102393 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1102429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7862 + ... + 8000.

It is an arithmetic number, because the mean of its divisors is an integer number (87360).

2^1102409 is an apocalyptic number.

It is an amenable number.

1102409 is a deficient number, since it is larger than the sum of its proper divisors (295351).

1102409 is a wasteful number, since it uses less digits than its factorization.

1102409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1102409 is about 1049.9566657724. The cubic root of 1102409 is about 103.3033130507.

The spelling of 1102409 in words is "one million, one hundred two thousand, four hundred nine".