25442330 has 32 divisors (see below), whose sum is σ = 48470400. Its totient is φ = 9588672.

The previous prime is 25442327. The next prime is 25442363. The reversal of 25442330 is 3324452.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25442296 and 25442305.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68024 + ... + 68396.

It is an arithmetic number, because the mean of its divisors is an integer number (1514700).

Almost surely, 2^25442330 is an apocalyptic number.

25442330 is a deficient number, since it is larger than the sum of its proper divisors (23028070).

25442330 is a wasteful number, since it uses less digits than its factorization.

25442330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758.

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 25442330 is about 5044.0390561533. The cubic root of 25442330 is about 294.1162096322.

Adding to 25442330 its reverse (3324452), we get a palindrome (28766782).

The spelling of 25442330 in words is "twenty-five million, four hundred forty-two thousand, three hundred thirty".