25342040 has 32 divisors (see below), whose sum is σ = 58564080. Its totient is φ = 9862272.

The previous prime is 25342039. The next prime is 25342043. The reversal of 25342040 is 4024352.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25342043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7082 + ... + 10041.

Almost surely, 2^25342040 is an apocalyptic number.

25342040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25342040 is an abundant number, since it is smaller than the sum of its proper divisors (33222040).

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

25342040 is a wasteful number, since it uses less digits than its factorization.

25342040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17171 (or 17167 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 25342040 is about 5034.0878021743. The cubic root of 25342040 is about 293.7292461571.

Adding to 25342040 its reverse (4024352), we get a palindrome (29366392).

The spelling of 25342040 in words is "twenty-five million, three hundred forty-two thousand, forty".