25790442 has 16 divisors (see below), whose sum is σ = 52038720. Its totient is φ = 8520512.

The previous prime is 25790441. The next prime is 25790447. The reversal of 25790442 is 24409752.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (25790441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18342 + ... + 19697.

It is an arithmetic number, because the mean of its divisors is an integer number (3252420).

Almost surely, 2^25790442 is an apocalyptic number.

25790442 is an abundant number, since it is smaller than the sum of its proper divisors (26248278).

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

25790442 is a wasteful number, since it uses less digits than its factorization.

25790442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38157.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 25790442 is about 5078.4290878184. The cubic root of 25790442 is about 295.4515425250.

The spelling of 25790442 in words is "twenty-five million, seven hundred ninety thousand, four hundred forty-two".