23783838 has 32 divisors (see below), whose sum is σ = 51940896. Its totient is φ = 7216128.

The previous prime is 23783777. The next prime is 23783869. The reversal of 23783838 is 83838732.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 23783838.

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, 3606 + ... + 7782.

It is an arithmetic number, because the mean of its divisors is an integer number (1623153).

Almost surely, 2^23783838 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23783838, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25970448).

23783838 is an abundant number, since it is smaller than the sum of its proper divisors (28157058).

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

23783838 is a wasteful number, since it uses less digits than its factorization.

23783838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4268.

The product of its digits is 193536, while the sum is 42.

The square root of 23783838 is about 4876.8676422474. The cubic root of 23783838 is about 287.5813022741.

It can be divided in two parts, 2378 and 3838, that added together give a triangular number (6216 = T₁₁₁).

The spelling of 23783838 in words is "twenty-three million, seven hundred eighty-three thousand, eight hundred thirty-eight".