24643420 has 12 divisors (see below), whose sum is σ = 51751224. Its totient is φ = 9857360.

The previous prime is 24643403. The next prime is 24643427. The reversal of 24643420 is 2434642.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24643427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 616066 + ... + 616105.

It is an arithmetic number, because the mean of its divisors is an integer number (4312602).

Almost surely, 2^24643420 is an apocalyptic number.

24643420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

24643420 is an abundant number, since it is smaller than the sum of its proper divisors (27107804).

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

24643420 is a wasteful number, since it uses less digits than its factorization.

24643420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1232180 (or 1232178 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 24643420 is about 4964.2139357606. The cubic root of 24643420 is about 291.0049164075.

The spelling of 24643420 in words is "twenty-four million, six hundred forty-three thousand, four hundred twenty".