30442625 has 16 divisors (see below), whose sum is σ = 38188800. Its totient is φ = 24228400.

The previous prime is 30442619. The next prime is 30442627. The reversal of 30442625 is 52624403.

It is not a de Polignac number, because 30442625 - 2⁴ = 30442609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30442594 and 30442603.

It is not an unprimeable number, because it can be changed into a prime (30442627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29366 + ... + 30384.

It is an arithmetic number, because the mean of its divisors is an integer number (2386800).

Almost surely, 2^30442625 is an apocalyptic number.

It is an amenable number.

30442625 is a deficient number, since it is larger than the sum of its proper divisors (7746175).

30442625 is a wasteful number, since it uses less digits than its factorization.

30442625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273 (or 1263 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 30442625 is about 5517.4835749642. The cubic root of 30442625 is about 312.2439502606.

The spelling of 30442625 in words is "thirty million, four hundred forty-two thousand, six hundred twenty-five".