2231386 has 8 divisors (see below), whose sum is σ = 3544020. Its totient is φ = 1050048.

The previous prime is 2231381. The next prime is 2231389. The reversal of 2231386 is 6831322.

It can be written as a sum of positive squares in 2 ways, for example, as 2193361 + 38025 = 1481^2 + 195^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×2231386³ = 33330771516977221368, which contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2231386.

It is not an unprimeable number, because it can be changed into a prime (2231381) 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, 32781 + ... + 32848.

2^2231386 is an apocalyptic number.

2231386 is a deficient number, since it is larger than the sum of its proper divisors (1312634).

2231386 is a wasteful number, since it uses less digits than its factorization.

2231386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65648.

The product of its digits is 1728, while the sum is 25.

The square root of 2231386 is about 1493.7824473463. The cubic root of 2231386 is about 130.6747169250.

The spelling of 2231386 in words is "two million, two hundred thirty-one thousand, three hundred eighty-six".