2263819 has 4 divisors (see below), whose sum is σ = 2274760. Its totient is φ = 2252880.

The previous prime is 2263817. The next prime is 2263829. The reversal of 2263819 is 9183622.

2263819 = T₁₂₂₇ + T₁₂₂₈ + T₁₂₂₉.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2263819 - 2¹ = 2263817 is a prime.

It is a super-2 number, since 2×2263819² = 10249752929522, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2⁷ + 2¹⁹ + 6⁸ + 3¹⁰ + 8 + 1 + 9³ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2263817) 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, 5154 + ... + 5575.

It is an arithmetic number, because the mean of its divisors is an integer number (568690).

2^2263819 is an apocalyptic number.

2263819 is the 1229-th centered triangular number.

2263819 is a deficient number, since it is larger than the sum of its proper divisors (10941).

2263819 is a wasteful number, since it uses less digits than its factorization.

2263819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10940.

The product of its digits is 5184, while the sum is 31.

The square root of 2263819 is about 1504.5992822011. The cubic root of 2263819 is about 131.3047892192.

The spelling of 2263819 in words is "two million, two hundred sixty-three thousand, eight hundred nineteen".