2231366 has 4 divisors (see below), whose sum is σ = 3347052. Its totient is φ = 1115682.

The previous prime is 2231357. The next prime is 2231371. The reversal of 2231366 is 6631322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6631322 = 2 ⋅3315661.

It is a super-3 number, since 3×2231366³ = 33329875289983607688, which contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557840 + ... + 557843.

It is an arithmetic number, because the mean of its divisors is an integer number (836763).

2^2231366 is an apocalyptic number.

2231366 is a deficient number, since it is larger than the sum of its proper divisors (1115686).

2231366 is a wasteful number, since it uses less digits than its factorization.

2231366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115685.

The product of its digits is 1296, while the sum is 23.

The square root of 2231366 is about 1493.7757529161. The cubic root of 2231366 is about 130.6743265096.

Adding to 2231366 its reverse (6631322), we get a palindrome (8862688).

The spelling of 2231366 in words is "two million, two hundred thirty-one thousand, three hundred sixty-six".