23005724 has 24 divisors (see below), whose sum is σ = 46128768. Its totient is φ = 9834480.

The previous prime is 23005673. The next prime is 23005747. The reversal of 23005724 is 42750032.

It is a self number, because there is not a number n which added to its sum of digits gives 23005724.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13859 + ... + 15429.

It is an arithmetic number, because the mean of its divisors is an integer number (1922032).

Almost surely, 2^23005724 is an apocalyptic number.

It is an amenable number.

23005724 is an abundant number, since it is smaller than the sum of its proper divisors (23123044).

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

23005724 is a wasteful number, since it uses less digits than its factorization.

23005724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2105 (or 2103 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 23005724 is about 4796.4282544410. The cubic root of 23005724 is about 284.4102877596.

Adding to 23005724 its reverse (42750032), we get a palindrome (65755756).

The spelling of 23005724 in words is "twenty-three million, five thousand, seven hundred twenty-four".