2263636 has 6 divisors (see below), whose sum is σ = 3961370. Its totient is φ = 1131816.

The previous prime is 2263633. The next prime is 2263643. The reversal of 2263636 is 6363622.

It can be written as a sum of positive squares in only one way, i.e., 1223236 + 1040400 = 1106^2 + 1020^2 .

It is a d-powerful number, because it can be written as 2³ + 2¹⁹ + 6³ + 3⁵ + 6³ + 3¹⁰ + 6⁸ .

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 as a sum of consecutive naturals, namely, 282951 + ... + 282958.

2^2263636 is an apocalyptic number.

It is an amenable number.

2263636 is a deficient number, since it is larger than the sum of its proper divisors (1697734).

2263636 is a wasteful number, since it uses less digits than its factorization.

2263636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565913 (or 565911 counting only the distinct ones).

The product of its digits is 7776, while the sum is 28.

The square root of 2263636 is about 1504.5384674378. The cubic root of 2263636 is about 131.3012510353.

The spelling of 2263636 in words is "two million, two hundred sixty-three thousand, six hundred thirty-six".