25342140 has 24 divisors (see below), whose sum is σ = 70958160. Its totient is φ = 6757888.

The previous prime is 25342139. The next prime is 25342193. The reversal of 25342140 is 4124352.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 211125 + ... + 211244.

It is an arithmetic number, because the mean of its divisors is an integer number (2956590).

Almost surely, 2^25342140 is an apocalyptic number.

25342140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25342140 is an abundant number, since it is smaller than the sum of its proper divisors (45616020).

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

25342140 is a wasteful number, since it uses less digits than its factorization.

25342140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422381 (or 422379 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 25342140 is about 5034.0977344505. The cubic root of 25342140 is about 293.7296325097.

Adding to 25342140 its reverse (4124352), we get a palindrome (29466492).

The spelling of 25342140 in words is "twenty-five million, three hundred forty-two thousand, one hundred forty".