2271838 has 4 divisors (see below), whose sum is σ = 3407760. Its totient is φ = 1135918.

The previous prime is 2271827. The next prime is 2271859. The reversal of 2271838 is 8381722.

2271838 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8381722 = 2 ⋅4190861.

It is a super-2 number, since 2×2271838² = 10322495796488, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 567958 + ... + 567961.

It is an arithmetic number, because the mean of its divisors is an integer number (851940).

2^2271838 is an apocalyptic number.

2271838 is a deficient number, since it is larger than the sum of its proper divisors (1135922).

2271838 is a wasteful number, since it uses less digits than its factorization.

2271838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1135921.

The product of its digits is 5376, while the sum is 31.

The square root of 2271838 is about 1507.2617556350. The cubic root of 2271838 is about 131.4596443993.

The spelling of 2271838 in words is "two million, two hundred seventy-one thousand, eight hundred thirty-eight".