25343430 has 128 divisors (see below), whose sum is σ = 76308480. Its totient is φ = 5253120.

The previous prime is 25343429. The next prime is 25343441. The reversal of 25343430 is 3434352.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 25343430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 110556 + ... + 110784.

It is an arithmetic number, because the mean of its divisors is an integer number (596160).

Almost surely, 2^25343430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25343430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38154240).

25343430 is an abundant number, since it is smaller than the sum of its proper divisors (50965050).

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

25343430 is a wasteful number, since it uses less digits than its factorization.

25343430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294.

The product of its (nonzero) digits is 4320, while the sum is 24.

The square root of 25343430 is about 5034.2258590572. The cubic root of 25343430 is about 293.7346163666.

Adding to 25343430 its reverse (3434352), we get a palindrome (28777782).

The spelling of 25343430 in words is "twenty-five million, three hundred forty-three thousand, four hundred thirty".