2259819 has 20 divisors (see below), whose sum is σ = 3525456. Its totient is φ = 1439856.

The previous prime is 2259811. The next prime is 2259823. The reversal of 2259819 is 9189522.

It is not a de Polignac number, because 2259819 - 2³ = 2259811 is a prime.

It is a super-2 number, since 2×2259819² = 10213563825522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2259811) 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 19 ways as a sum of consecutive naturals, for example, 1257 + ... + 2469.

2^2259819 is an apocalyptic number.

2259819 is a deficient number, since it is larger than the sum of its proper divisors (1265637).

2259819 is a wasteful number, since it uses less digits than its factorization.

2259819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248 (or 1239 counting only the distinct ones).

The product of its digits is 12960, while the sum is 36.

The square root of 2259819 is about 1503.2694369274. The cubic root of 2259819 is about 131.2274083565.

The spelling of 2259819 in words is "two million, two hundred fifty-nine thousand, eight hundred nineteen".