23989312 has 42 divisors (see below), whose sum is σ = 50607722. Its totient is φ = 11280384.

The previous prime is 23989309. The next prime is 23989331. The reversal of 23989312 is 21398932.

It can be written as a sum of positive squares in 3 ways, for example, as 18113536 + 5875776 = 4256^2 + 2424^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17848 + ... + 19144.

Almost surely, 2^23989312 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 23989312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25303861).

23989312 is an abundant number, since it is smaller than the sum of its proper divisors (26618410).

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

23989312 is a wasteful number, since it uses less digits than its factorization.

23989312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1343 (or 1316 counting only the distinct ones).

The product of its digits is 23328, while the sum is 37.

The square root of 23989312 is about 4897.8885246604. Note that the first 3 decimals coincide. The cubic root of 23989312 is about 288.4070889165.

The spelling of 23989312 in words is "twenty-three million, nine hundred eighty-nine thousand, three hundred twelve".