25341840 has 120 divisors (see below), whose sum is σ = 86651448. Its totient is φ = 6635520.

The previous prime is 25341821. The next prime is 25341847. The reversal of 25341840 is 4814352.

It can be written as a sum of positive squares in 4 ways, for example, as 3326976 + 22014864 = 1824^2 + 4692^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25341847) 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 23 ways as a sum of consecutive naturals, for example, 43632 + ... + 44208.

Almost surely, 2^25341840 is an apocalyptic number.

25341840 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 25341840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43325724).

25341840 is an abundant number, since it is smaller than the sum of its proper divisors (61309608).

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

25341840 is a wasteful number, since it uses less digits than its factorization.

25341840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657 (or 648 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 25341840 is about 5034.0679375630. The cubic root of 25341840 is about 293.7284734489.

The spelling of 25341840 in words is "twenty-five million, three hundred forty-one thousand, eight hundred forty".