30442425 has 24 divisors (see below), whose sum is σ = 54204864. Its totient is φ = 14986560.

The previous prime is 30442411. The next prime is 30442429. The reversal of 30442425 is 52424403.

It is not a de Polignac number, because 30442425 - 2⁷ = 30442297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30442395 and 30442404.

It is not an unprimeable number, because it can be changed into a prime (30442429) 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, 14637 + ... + 16586.

It is an arithmetic number, because the mean of its divisors is an integer number (2258536).

Almost surely, 2^30442425 is an apocalyptic number.

It is an amenable number.

30442425 is a deficient number, since it is larger than the sum of its proper divisors (23762439).

30442425 is a wasteful number, since it uses less digits than its factorization.

30442425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31249 (or 31244 counting only the distinct ones).

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

The square root of 30442425 is about 5517.4654507301. The cubic root of 30442425 is about 312.2432664724.

Adding to 30442425 its reverse (52424403), we get a palindrome (82866828).

The spelling of 30442425 in words is "thirty million, four hundred forty-two thousand, four hundred twenty-five".