30315242 has 16 divisors (see below), whose sum is σ = 47779200. Its totient is φ = 14398032.

The previous prime is 30315227. The next prime is 30315253. The reversal of 30315242 is 24251303.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4643 + ... + 9065.

It is an arithmetic number, because the mean of its divisors is an integer number (2986200).

Almost surely, 2^30315242 is an apocalyptic number.

30315242 is a deficient number, since it is larger than the sum of its proper divisors (17463958).

30315242 is a wasteful number, since it uses less digits than its factorization.

30315242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4597.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 30315242 is about 5505.9278963677. The cubic root of 30315242 is about 311.8078273625.

Adding to 30315242 its reverse (24251303), we get a palindrome (54566545).

The spelling of 30315242 in words is "thirty million, three hundred fifteen thousand, two hundred forty-two".