25622340 has 24 divisors (see below), whose sum is σ = 71742720. Its totient is φ = 6832608.

The previous prime is 25622339. The next prime is 25622347. The reversal of 25622340 is 4322652.

It is a self number, because there is not a number n which added to its sum of digits gives 25622340.

It is not an unprimeable number, because it can be changed into a prime (25622347) 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, 213460 + ... + 213579.

It is an arithmetic number, because the mean of its divisors is an integer number (2989280).

Almost surely, 2^25622340 is an apocalyptic number.

25622340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25622340 is an abundant number, since it is smaller than the sum of its proper divisors (46120380).

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

25622340 is a wasteful number, since it uses less digits than its factorization.

25622340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427051 (or 427049 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 25622340 is about 5061.8514399378. The cubic root of 25622340 is about 294.8082254486.

Adding to 25622340 its reverse (4322652), we get a palindrome (29944992).

The spelling of 25622340 in words is "twenty-five million, six hundred twenty-two thousand, three hundred forty".