23689320 has 64 divisors (see below), whose sum is σ = 71737920. Its totient is φ = 6257664.

The previous prime is 23689291. The next prime is 23689321. The reversal of 23689320 is 2398632.

It is a super-2 number, since 2×23689320² = 1122367764124800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23689321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12687 + ... + 14433.

It is an arithmetic number, because the mean of its divisors is an integer number (1120905).

Almost surely, 2^23689320 is an apocalyptic number.

23689320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23689320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35868960).

23689320 is an abundant number, since it is smaller than the sum of its proper divisors (48048600).

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

23689320 is a wasteful number, since it uses less digits than its factorization.

23689320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1874 (or 1870 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 23689320 is about 4867.1675541325. The cubic root of 23689320 is about 287.1998430075.

The spelling of 23689320 in words is "twenty-three million, six hundred eighty-nine thousand, three hundred twenty".