25214340 has 96 divisors (see below), whose sum is σ = 74954880. Its totient is φ = 6322176.

The previous prime is 25214317. The next prime is 25214359. The reversal of 25214340 is 4341252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74652 + ... + 74988.

It is an arithmetic number, because the mean of its divisors is an integer number (780780).

Almost surely, 2^25214340 is an apocalyptic number.

25214340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25214340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37477440).

25214340 is an abundant number, since it is smaller than the sum of its proper divisors (49740540).

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

25214340 is a wasteful number, since it uses less digits than its factorization.

25214340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421 (or 419 counting only the distinct ones).

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

The square root of 25214340 is about 5021.3882542580. The cubic root of 25214340 is about 293.2350422516.

Adding to 25214340 its reverse (4341252), we get a palindrome (29555592).

The spelling of 25214340 in words is "twenty-five million, two hundred fourteen thousand, three hundred forty".