2809485 has 40 divisors (see below), whose sum is σ = 5761536. Its totient is φ = 1283040.

The previous prime is 2809483. The next prime is 2809487. The reversal of 2809485 is 5849082.

It is an interprime number because it is at equal distance from previous prime (2809483) and next prime (2809487).

It is not a de Polignac number, because 2809485 - 2¹ = 2809483 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2809483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2340 + ... + 3330.

2^2809485 is an apocalyptic number.

It is an amenable number.

2809485 is an abundant number, since it is smaller than the sum of its proper divisors (2952051).

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

2809485 is an equidigital number, since it uses as much as digits as its factorization.

2809485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015 (or 1006 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 2809485 is about 1676.1518427637. The cubic root of 2809485 is about 141.1049467665.

The spelling of 2809485 in words is "two million, eight hundred nine thousand, four hundred eighty-five".