23989284 has 120 divisors (see below), whose sum is σ = 70253568. Its totient is φ = 7076160.

The previous prime is 23989271. The next prime is 23989289. The reversal of 23989284 is 48298932.

It is not an unprimeable number, because it can be changed into a prime (23989289) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 188829 + ... + 188955.

Almost surely, 2^23989284 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23989284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35126784).

23989284 is an abundant number, since it is smaller than the sum of its proper divisors (46264284).

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

23989284 is a wasteful number, since it uses less digits than its factorization.

23989284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207 (or 196 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 23989284 is about 4897.8856662850. The cubic root of 23989284 is about 288.4069767081.

It can be divided in two parts, 2398928 and 4, that added together give a palindrome (2398932).

The spelling of 23989284 in words is "twenty-three million, nine hundred eighty-nine thousand, two hundred eighty-four".