25344420 has 24 divisors (see below), whose sum is σ = 70964544. Its totient is φ = 6758496.

The previous prime is 25344419. The next prime is 25344427. The reversal of 25344420 is 2444352.

It is not an unprimeable number, because it can be changed into a prime (25344427) 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 7 ways as a sum of consecutive naturals, for example, 211144 + ... + 211263.

It is an arithmetic number, because the mean of its divisors is an integer number (2956856).

Almost surely, 2^25344420 is an apocalyptic number.

25344420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25344420 is an abundant number, since it is smaller than the sum of its proper divisors (45620124).

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

25344420 is a wasteful number, since it uses less digits than its factorization.

25344420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422419 (or 422417 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 25344420 is about 5034.3241850322. The cubic root of 25344420 is about 293.7384410723.

Adding to 25344420 its reverse (2444352), we get a palindrome (27788772).

The spelling of 25344420 in words is "twenty-five million, three hundred forty-four thousand, four hundred twenty".