25834440 has 64 divisors (see below), whose sum is σ = 77837760. Its totient is φ = 6859520.

The previous prime is 25834429. The next prime is 25834453. The reversal of 25834440 is 4443852.

It is a super-3 number, since 3×25834440³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 25834398 and 25834407.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 55087 + ... + 55553.

It is an arithmetic number, because the mean of its divisors is an integer number (1216215).

Almost surely, 2^25834440 is an apocalyptic number.

25834440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25834440 is an abundant number, since it is smaller than the sum of its proper divisors (52003320).

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

25834440 is a wasteful number, since it uses less digits than its factorization.

25834440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 942 (or 938 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

The square root of 25834440 is about 5082.7590932485. The cubic root of 25834440 is about 295.6194586312.

The spelling of 25834440 in words is "twenty-five million, eight hundred thirty-four thousand, four hundred forty".