23235516 has 18 divisors (see below), whose sum is σ = 58734312. Its totient is φ = 7745160.

The previous prime is 23235503. The next prime is 23235517. The reversal of 23235516 is 61553232.

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 23235516.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23235517) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 322680 + ... + 322751.

Almost surely, 2^23235516 is an apocalyptic number.

It is an amenable number.

23235516 is an abundant number, since it is smaller than the sum of its proper divisors (35498796).

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

23235516 is a wasteful number, since it uses less digits than its factorization.

23235516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645441 (or 645436 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 23235516 is about 4820.3232256769. The cubic root of 23235516 is about 285.3540935827.

Adding to 23235516 its reverse (61553232), we get a palindrome (84788748).

The spelling of 23235516 in words is "twenty-three million, two hundred thirty-five thousand, five hundred sixteen".