2249409 has 4 divisors (see below), whose sum is σ = 2999216. Its totient is φ = 1499604.

The previous prime is 2249399. The next prime is 2249411. The reversal of 2249409 is 9049422.

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 not a de Polignac number, because 2249409 - 2⁴ = 2249393 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2249419) 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, 374899 + ... + 374904.

It is an arithmetic number, because the mean of its divisors is an integer number (749804).

2^2249409 is an apocalyptic number.

It is an amenable number.

2249409 is a deficient number, since it is larger than the sum of its proper divisors (749807).

2249409 is an equidigital number, since it uses as much as digits as its factorization.

2249409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749806.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 2249409 is about 1499.8029870620. The cubic root of 2249409 is about 131.0255956823.

The spelling of 2249409 in words is "two million, two hundred forty-nine thousand, four hundred nine".