2248809 has 16 divisors (see below), whose sum is σ = 3144960. Its totient is φ = 1427840.

The previous prime is 2248787. The next prime is 2248837. The reversal of 2248809 is 9088422.

2248809 = T₁₉₂ + T₁₉₃ + ... + T₂₇₃.

It is a cyclic number.

It is not a de Polignac number, because 2248809 - 2⁷ = 2248681 is a prime.

It is an Ulam number.

2248809 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2248809.

It is not an unprimeable number, because it can be changed into a prime (2248849) 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, 5587 + ... + 5975.

It is an arithmetic number, because the mean of its divisors is an integer number (196560).

2^2248809 is an apocalyptic number.

It is an amenable number.

2248809 is a deficient number, since it is larger than the sum of its proper divisors (896151).

2248809 is a wasteful number, since it uses less digits than its factorization.

2248809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480.

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 2248809 is about 1499.6029474498. The cubic root of 2248809 is about 131.0139448667.

The spelling of 2248809 in words is "two million, two hundred forty-eight thousand, eight hundred nine".