23749938 has 24 divisors (see below), whose sum is σ = 53696448. Its totient is φ = 7572312.

The previous prime is 23749931. The next prime is 23749939. The reversal of 23749938 is 83994732.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23749893 and 23749902.

It is not an unprimeable number, because it can be changed into a prime (23749931) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28270 + ... + 29097.

It is an arithmetic number, because the mean of its divisors is an integer number (2237352).

Almost surely, 2^23749938 is an apocalyptic number.

23749938 is an abundant number, since it is smaller than the sum of its proper divisors (29946510).

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

23749938 is a wasteful number, since it uses less digits than its factorization.

23749938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57398 (or 57395 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 23749938 is about 4873.3908113345. The cubic root of 23749938 is about 287.4446038196. Note that the first 3 decimals are identical.

The spelling of 23749938 in words is "twenty-three million, seven hundred forty-nine thousand, nine hundred thirty-eight".