25430442 has 8 divisors (see below), whose sum is σ = 50860896. Its totient is φ = 8476812.

The previous prime is 25430437. The next prime is 25430443. The reversal of 25430442 is 24403452.

It is a sphenic number, since it is the product of 3 distinct primes.

25430442 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (25430443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2119198 + ... + 2119209.

It is an arithmetic number, because the mean of its divisors is an integer number (6357612).

Almost surely, 2^25430442 is an apocalyptic number.

25430442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

25430442 is a wasteful number, since it uses less digits than its factorization.

25430442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4238412.

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 25430442 is about 5042.8604977731. The cubic root of 25430442 is about 294.0703936211.

Adding to 25430442 its reverse (24403452), we get a palindrome (49833894).

The spelling of 25430442 in words is "twenty-five million, four hundred thirty thousand, four hundred forty-two".