2226381 has 4 divisors (see below), whose sum is σ = 2968512. Its totient is φ = 1484252.

The previous prime is 2226373. The next prime is 2226383. The reversal of 2226381 is 1836222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2226381 - 2³ = 2226373 is a prime.

It is a super-2 number, since 2×2226381² = 9913544714322, which contains 22 as substring.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2226383) 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, 371061 + ... + 371066.

It is an arithmetic number, because the mean of its divisors is an integer number (742128).

2^2226381 is an apocalyptic number.

It is an amenable number.

2226381 is a deficient number, since it is larger than the sum of its proper divisors (742131).

2226381 is an equidigital number, since it uses as much as digits as its factorization.

2226381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742130.

The product of its digits is 1152, while the sum is 24.

The square root of 2226381 is about 1492.1062294622. The cubic root of 2226381 is about 130.5769426324.

The spelling of 2226381 in words is "two million, two hundred twenty-six thousand, three hundred eighty-one".