2230381 has 4 divisors (see below), whose sum is σ = 2245500. Its totient is φ = 2215264.

The previous prime is 2230351. The next prime is 2230409. The reversal of 2230381 is 1830322.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 81225 + 2149156 = 285^2 + 1466^2 .

It is a cyclic number.

It is not a de Polignac number, because 2230381 - 2⁷ = 2230253 is a prime.

It is a super-2 number, since 2×2230381² = 9949198810322, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2¹¹ + 2¹⁷ + 3³ + 0 + 3⁴ + 8⁷ + 1 .

It is a Duffinian number.

2230381 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2230301) 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, 7336 + ... + 7633.

It is an arithmetic number, because the mean of its divisors is an integer number (561375).

2^2230381 is an apocalyptic number.

It is an amenable number.

2230381 is a deficient number, since it is larger than the sum of its proper divisors (15119).

2230381 is a wasteful number, since it uses less digits than its factorization.

2230381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15118.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2230381 is about 1493.4460150940. The cubic root of 2230381 is about 130.6550956654.

It can be divided in two parts, 22 and 30381, that added together give a palindrome (30403).

The spelling of 2230381 in words is "two million, two hundred thirty thousand, three hundred eighty-one".