25943040 has 132 divisors (see below), whose sum is σ = 90051624. Its totient is φ = 6905856.

The previous prime is 25943039. The next prime is 25943051. The reversal of 25943040 is 4034952.

25943040 is a `hidden beast` number, since 2 + 594 + 30 + 40 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 25942995 and 25943013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45799 + ... + 46361.

Almost surely, 2^25943040 is an apocalyptic number.

25943040 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 25943040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45025812).

25943040 is an abundant number, since it is smaller than the sum of its proper divisors (64108584).

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

25943040 is a wasteful number, since it uses less digits than its factorization.

25943040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594 (or 573 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 25943040 is about 5093.4310636348. The cubic root of 25943040 is about 296.0331104914.

Adding to 25943040 its reverse (4034952), we get a palindrome (29977992).

The spelling of 25943040 in words is "twenty-five million, nine hundred forty-three thousand, forty".