2263631 has 4 divisors (see below), whose sum is σ = 2285712. Its totient is φ = 2241552.

The previous prime is 2263627. The next prime is 2263633. The reversal of 2263631 is 1363622.

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

It is a cyclic number.

It is not a de Polignac number, because 2263631 - 2² = 2263627 is a prime.

It is a super-2 number, since 2×2263631² = 10248050608322, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2263597 and 2263606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2263633) 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, 10886 + ... + 11091.

It is an arithmetic number, because the mean of its divisors is an integer number (571428).

2^2263631 is an apocalyptic number.

2263631 is a deficient number, since it is larger than the sum of its proper divisors (22081).

2263631 is a wasteful number, since it uses less digits than its factorization.

2263631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22080.

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

The square root of 2263631 is about 1504.5368057977. The cubic root of 2263631 is about 131.3011543610.

Subtracting from 2263631 its reverse (1363622), we obtain a palindrome (900009).

The spelling of 2263631 in words is "two million, two hundred sixty-three thousand, six hundred thirty-one".