23984740 has 48 divisors (see below), whose sum is σ = 56130480. Its totient is φ = 8547840.

The previous prime is 23984729. The next prime is 23984743. The reversal of 23984740 is 4748932.

23984740 = T₂₅₃ + T₂₅₄ + ... + T₅₄₂.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 5683456 + 18301284 = 2384^2 + 4278^2 .

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 23984740.

It is not an unprimeable number, because it can be changed into a prime (23984743) 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, 5950 + ... + 9130.

It is an arithmetic number, because the mean of its divisors is an integer number (1169385).

Almost surely, 2^23984740 is an apocalyptic number.

23984740 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 23984740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28065240).

23984740 is an abundant number, since it is smaller than the sum of its proper divisors (32145740).

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

23984740 is a wasteful number, since it uses less digits than its factorization.

23984740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3232 (or 3230 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 23984740 is about 4897.4217706871. The cubic root of 23984740 is about 288.3887657428.

The spelling of 23984740 in words is "twenty-three million, nine hundred eighty-four thousand, seven hundred forty".