23809038 has 32 divisors (see below), whose sum is σ = 52496640. Its totient is φ = 7138560.

The previous prime is 23809021. The next prime is 23809063. The reversal of 23809038 is 83090832.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4543 + ... + 8261.

It is an arithmetic number, because the mean of its divisors is an integer number (1640520).

Almost surely, 2^23809038 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23809038, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26248320).

23809038 is an abundant number, since it is smaller than the sum of its proper divisors (28687602).

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

23809038 is a wasteful number, since it uses less digits than its factorization.

23809038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3832.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 23809038 is about 4879.4505838260. The cubic root of 23809038 is about 287.6828346789.

The spelling of 23809038 in words is "twenty-three million, eight hundred nine thousand, thirty-eight".