25402230 has 96 divisors (see below), whose sum is σ = 76834368. Its totient is φ = 5702400.

The previous prime is 25402229. The next prime is 25402241. The reversal of 25402230 is 3220452.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 38100 + ... + 38760.

It is an arithmetic number, because the mean of its divisors is an integer number (800358).

Almost surely, 2^25402230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25402230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38417184).

25402230 is an abundant number, since it is smaller than the sum of its proper divisors (51432138).

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

25402230 is a wasteful number, since it uses less digits than its factorization.

25402230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742 (or 739 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 25402230 is about 5040.0624996125. The cubic root of 25402230 is about 293.9616082036.

Adding to 25402230 its reverse (3220452), we get a palindrome (28622682).

The spelling of 25402230 in words is "twenty-five million, four hundred two thousand, two hundred thirty".