2231436 has 24 divisors (see below), whose sum is σ = 5481280. Its totient is φ = 704592.

The previous prime is 2231431. The next prime is 2231447. The reversal of 2231436 is 6341322.

It is a happy number.

It is a super-3 number, since 3×2231436³ = 33333012154750229568, which contains 333 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (2231431) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 4666 + ... + 5121.

2^2231436 is an apocalyptic number.

It is an amenable number.

2231436 is an abundant number, since it is smaller than the sum of its proper divisors (3249844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2231436 is a wasteful number, since it uses less digits than its factorization.

2231436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9813 (or 9811 counting only the distinct ones).

The product of its digits is 864, while the sum is 21.

The square root of 2231436 is about 1493.7991832907. The cubic root of 2231436 is about 130.6756929532.

Adding to 2231436 its reverse (6341322), we get a palindrome (8572758).

The spelling of 2231436 in words is "two million, two hundred thirty-one thousand, four hundred thirty-six".