30530042 has 8 divisors (see below), whose sum is σ = 45854100. Its totient is φ = 15245344.

The previous prime is 30530041. The next prime is 30530053. The reversal of 30530042 is 24003503.

It can be written as a sum of positive squares in 2 ways, for example, as 22572001 + 7958041 = 4751^2 + 2821^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 30530042.

It is not an unprimeable number, because it can be changed into a prime (30530041) 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, 7817 + ... + 11052.

Almost surely, 2^30530042 is an apocalyptic number.

30530042 is a deficient number, since it is larger than the sum of its proper divisors (15324058).

30530042 is a wasteful number, since it uses less digits than its factorization.

30530042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19680.

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 30530042 is about 5525.3997140478. The cubic root of 30530042 is about 312.5425375695.

Adding to 30530042 its reverse (24003503), we get a palindrome (54533545).

The spelling of 30530042 in words is "thirty million, five hundred thirty thousand, forty-two".