2809042 has 8 divisors (see below), whose sum is σ = 4276656. Its totient is φ = 1383492.

The previous prime is 2809019. The next prime is 2809069. The reversal of 2809042 is 2409082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2808998 and 2809016.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10348 + ... + 10615.

It is an arithmetic number, because the mean of its divisors is an integer number (534582).

2^2809042 is an apocalyptic number.

2809042 is a deficient number, since it is larger than the sum of its proper divisors (1467614).

2809042 is a wasteful number, since it uses less digits than its factorization.

2809042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21032.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 2809042 is about 1676.0196896218. The cubic root of 2809042 is about 141.0975298939.

The spelling of 2809042 in words is "two million, eight hundred nine thousand, forty-two".