25214940 has 72 divisors (see below), whose sum is σ = 77601888. Its totient is φ = 6625920.

The previous prime is 25214921. The next prime is 25214941. The reversal of 25214940 is 4941252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25214941) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11794 + ... + 13766.

It is an arithmetic number, because the mean of its divisors is an integer number (1077804).

Almost surely, 2^25214940 is an apocalyptic number.

25214940 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 25214940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38800944).

25214940 is an abundant number, since it is smaller than the sum of its proper divisors (52386948).

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

25214940 is a wasteful number, since it uses less digits than its factorization.

25214940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2059 (or 2054 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 25214940 is about 5021.4479983367. The cubic root of 25214940 is about 293.2373681719.

The spelling of 25214940 in words is "twenty-five million, two hundred fourteen thousand, nine hundred forty".