30051242 has 24 divisors (see below), whose sum is σ = 49576896. Its totient is φ = 13652496.

The previous prime is 30051233. The next prime is 30051299. The reversal of 30051242 is 24215003.

It is a self number, because there is not a number n which added to its sum of digits gives 30051242.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21983 + ... + 23309.

It is an arithmetic number, because the mean of its divisors is an integer number (2065704).

Almost surely, 2^30051242 is an apocalyptic number.

30051242 is a deficient number, since it is larger than the sum of its proper divisors (19525654).

30051242 is a wasteful number, since it uses less digits than its factorization.

30051242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1422 (or 1409 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 30051242 is about 5481.9013125010. The cubic root of 30051242 is about 310.9000619740.

Adding to 30051242 its reverse (24215003), we get a palindrome (54266245).

The spelling of 30051242 in words is "thirty million, fifty-one thousand, two hundred forty-two".