2492809 has 16 divisors (see below), whose sum is σ = 2903040. Its totient is φ = 2118160.

The previous prime is 2492797. The next prime is 2492813. The reversal of 2492809 is 9082942.

It is not a de Polignac number, because 2492809 - 2¹³ = 2484617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2492879) 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, 14844 + ... + 15010.

It is an arithmetic number, because the mean of its divisors is an integer number (181440).

2^2492809 is an apocalyptic number.

It is an amenable number.

2492809 is a deficient number, since it is larger than the sum of its proper divisors (410231).

2492809 is a wasteful number, since it uses less digits than its factorization.

2492809 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 10368, while the sum is 34.

The square root of 2492809 is about 1578.8631986338. The cubic root of 2492809 is about 135.5906266816.

The spelling of 2492809 in words is "two million, four hundred ninety-two thousand, eight hundred nine".