25234434 has 48 divisors (see below), whose sum is σ = 57867264. Its totient is φ = 7934400.

The previous prime is 25234397. The next prime is 25234439. The reversal of 25234434 is 43443252.

It is a junction number, because it is equal to n+sod(n) for n = 25234398 and 25234407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25234439) 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, 22327 + ... + 23429.

It is an arithmetic number, because the mean of its divisors is an integer number (1205568).

Almost surely, 2^25234434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25234434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28933632).

25234434 is an abundant number, since it is smaller than the sum of its proper divisors (32632830).

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

25234434 is a wasteful number, since it uses less digits than its factorization.

25234434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1183 (or 1180 counting only the distinct ones).

The product of its digits is 11520, while the sum is 27.

The square root of 25234434 is about 5023.3886968858. The cubic root of 25234434 is about 293.3129172545.

Adding to 25234434 its reverse (43443252), we get a palindrome (68677686).

The spelling of 25234434 in words is "twenty-five million, two hundred thirty-four thousand, four hundred thirty-four".