23729056 has 24 divisors (see below), whose sum is σ = 50311044. Its totient is φ = 10951680.

The previous prime is 23729039. The next prime is 23729063. The reversal of 23729056 is 65092732.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 22240656 + 1488400 = 4716^2 + 1220^2 .

It is a super-3 number, since 3×23729056³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28105 + ... + 28936.

Almost surely, 2^23729056 is an apocalyptic number.

23729056 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

23729056 is an abundant number, since it is smaller than the sum of its proper divisors (26581988).

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

23729056 is a wasteful number, since it uses less digits than its factorization.

23729056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57064 (or 57056 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 23729056 is about 4871.2478894016. The cubic root of 23729056 is about 287.3603344308.

The spelling of 23729056 in words is "twenty-three million, seven hundred twenty-nine thousand, fifty-six".