30043242 has 24 divisors (see below), whose sum is σ = 66682980. Its totient is φ = 9769920.

The previous prime is 30043241. The next prime is 30043249. The reversal of 30043242 is 24234003.

It can be written as a sum of positive squares in 2 ways, for example, as 25918281 + 4124961 = 5091^2 + 2031^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (30043241) by changing a digit.

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, 19617 + ... + 21092.

Almost surely, 2^30043242 is an apocalyptic number.

30043242 is an abundant number, since it is smaller than the sum of its proper divisors (36639738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30043242 is a wasteful number, since it uses less digits than its factorization.

30043242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40758 (or 40755 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 30043242 is about 5481.1715900891. The cubic root of 30043242 is about 310.8724710873.

Adding to 30043242 its reverse (24234003), we get a palindrome (54277245).

The spelling of 30043242 in words is "thirty million, forty-three thousand, two hundred forty-two".