24934640 has 20 divisors (see below), whose sum is σ = 57973224. Its totient is φ = 9973824.

The previous prime is 24934627. The next prime is 24934667. The reversal of 24934640 is 4643942.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 24934597 and 24934606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155762 + ... + 155921.

Almost surely, 2^24934640 is an apocalyptic number.

24934640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

24934640 is an abundant number, since it is smaller than the sum of its proper divisors (33038584).

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

24934640 is a wasteful number, since it uses less digits than its factorization.

24934640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311696 (or 311690 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 24934640 is about 4993.4597224770. The cubic root of 24934640 is about 292.1467330333.

The spelling of 24934640 in words is "twenty-four million, nine hundred thirty-four thousand, six hundred forty".