24985920 has 112 divisors (see below), whose sum is σ = 84051648. Its totient is φ = 6266880.

The previous prime is 24985897. The next prime is 24985921. The reversal of 24985920 is 2958942.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24985921) 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, 15555 + ... + 17085.

Almost surely, 2^24985920 is an apocalyptic number.

24985920 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 24985920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42025824).

24985920 is an abundant number, since it is smaller than the sum of its proper divisors (59065728).

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

24985920 is a wasteful number, since it uses less digits than its factorization.

24985920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1568 (or 1558 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 24985920 is about 4998.5918016978. The cubic root of 24985920 is about 292.3468699530.

The spelling of 24985920 in words is "twenty-four million, nine hundred eighty-five thousand, nine hundred twenty".