25940320 has 192 divisors, whose sum is σ = 78382080. Its totient is φ = 7907328.

The previous prime is 25940303. The next prime is 25940329. The reversal of 25940320 is 2304952.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25940329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 489414 + ... + 489466.

It is an arithmetic number, because the mean of its divisors is an integer number (408240).

Almost surely, 2^25940320 is an apocalyptic number.

25940320 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 25940320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39191040).

25940320 is an abundant number, since it is smaller than the sum of its proper divisors (52441760).

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

25940320 is a wasteful number, since it uses less digits than its factorization.

25940320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117 (or 109 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 25940320 is about 5093.1640460523. The cubic root of 25940320 is about 296.0227642585.

The spelling of 25940320 in words is "twenty-five million, nine hundred forty thousand, three hundred twenty".