30516042 has 8 divisors (see below), whose sum is σ = 61032096. Its totient is φ = 10172012.

The previous prime is 30516023. The next prime is 30516047. The reversal of 30516042 is 24061503.

It is a happy number.

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

30516042 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (30516047) 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, 2542998 + ... + 2543009.

It is an arithmetic number, because the mean of its divisors is an integer number (7629012).

Almost surely, 2^30516042 is an apocalyptic number.

30516042 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.

30516042 is a wasteful number, since it uses less digits than its factorization.

30516042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5086012.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 30516042 is about 5524.1326921065. The cubic root of 30516042 is about 312.4947566054.

Adding to 30516042 its reverse (24061503), we get a palindrome (54577545).

The spelling of 30516042 in words is "thirty million, five hundred sixteen thousand, forty-two".