2494509 has 4 divisors (see below), whose sum is σ = 3326016. Its totient is φ = 1663004.

The previous prime is 2494507. The next prime is 2494517. The reversal of 2494509 is 9054942.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2494509 - 2¹ = 2494507 is a prime.

It is a D-number.

2494509 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2494509.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2494507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 415749 + ... + 415754.

It is an arithmetic number, because the mean of its divisors is an integer number (831504).

2^2494509 is an apocalyptic number.

It is an amenable number.

2494509 is a deficient number, since it is larger than the sum of its proper divisors (831507).

2494509 is an equidigital number, since it uses as much as digits as its factorization.

2494509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831506.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 2494509 is about 1579.4014689116. The cubic root of 2494509 is about 135.6214422110.

It can be divided in two parts, 2494 and 509, that added together give a palindrome (3003).

The spelling of 2494509 in words is "two million, four hundred ninety-four thousand, five hundred nine".