24643968 has 64 divisors (see below), whose sum is σ = 67748400. Its totient is φ = 7927808.

The previous prime is 24643967. The next prime is 24643979. The reversal of 24643968 is 86934642.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24643963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10030 + ... + 12242.

Almost surely, 2^24643968 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 24643968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33874200).

24643968 is an abundant number, since it is smaller than the sum of its proper divisors (43104432).

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

24643968 is a wasteful number, since it uses less digits than its factorization.

24643968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2259 (or 2247 counting only the distinct ones).

The product of its digits is 248832, while the sum is 42.

The square root of 24643968 is about 4964.2691304965. The cubic root of 24643968 is about 291.0070734337.

The spelling of 24643968 in words is "twenty-four million, six hundred forty-three thousand, nine hundred sixty-eight".