23015850 has 192 divisors, whose sum is σ = 71245440. Its totient is φ = 4838400.

The previous prime is 23015843. The next prime is 23015851. The reversal of 23015850 is 5851032.

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 23015850.

It is not an unprimeable number, because it can be changed into a prime (23015851) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 622032 + ... + 622068.

It is an arithmetic number, because the mean of its divisors is an integer number (371070).

Almost surely, 2^23015850 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23015850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35622720).

23015850 is an abundant number, since it is smaller than the sum of its proper divisors (48229590).

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

23015850 is a wasteful number, since it uses less digits than its factorization.

23015850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105 (or 100 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 23015850 is about 4797.4837154492. The cubic root of 23015850 is about 284.4520094943.

Adding to 23015850 its reverse (5851032), we get a palindrome (28866882).

The spelling of 23015850 in words is "twenty-three million, fifteen thousand, eight hundred fifty".