23243636 has 24 divisors (see below), whose sum is σ = 44047080. Its totient is φ = 10668672.

The previous prime is 23243629. The next prime is 23243651. The reversal of 23243636 is 63634232.

It can be written as a sum of positive squares in 4 ways, for example, as 1210000 + 22033636 = 1100^2 + 4694^2 .

It is a super-2 number, since 2×23243636² = 1080533229000992, which contains 22 as substring.

23243636 is a modest number, since divided by 3636 gives 2324 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 23243599 and 23243608.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9110 + ... + 11378.

It is an arithmetic number, because the mean of its divisors is an integer number (1835295).

Almost surely, 2^23243636 is an apocalyptic number.

23243636 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

23243636 is a deficient number, since it is larger than the sum of its proper divisors (20803444).

23243636 is a wasteful number, since it uses less digits than its factorization.

23243636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2483 (or 2481 counting only the distinct ones).

The product of its digits is 15552, while the sum is 29.

The square root of 23243636 is about 4821.1654192736. The cubic root of 23243636 is about 285.3873301357.

Adding to 23243636 its reverse (63634232), we get a palindrome (86877868).

The spelling of 23243636 in words is "twenty-three million, two hundred forty-three thousand, six hundred thirty-six".