30124242 has 12 divisors (see below), whose sum is σ = 65269230. Its totient is φ = 10041408.

The previous prime is 30124229. The next prime is 30124249. The reversal of 30124242 is 24242103.

It can be written as a sum of positive squares in only one way, i.e., 21427641 + 8696601 = 4629^2 + 2949^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1673569 = 30124242 / (3 + 0 + 1 + 2 + 4 + 2 + 4 + 2).

It is not an unprimeable number, because it can be changed into a prime (30124249) 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 5 ways as a sum of consecutive naturals, for example, 836767 + ... + 836802.

Almost surely, 2^30124242 is an apocalyptic number.

30124242 is an abundant number, since it is smaller than the sum of its proper divisors (35144988).

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

30124242 is a wasteful number, since it uses less digits than its factorization.

30124242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1673577 (or 1673574 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 30124242 is about 5488.5555476828. Note that the first 4 decimals coincide. The cubic root of 30124242 is about 311.1516029024.

Adding to 30124242 its reverse (24242103), we get a palindrome (54366345).

The spelling of 30124242 in words is "thirty million, one hundred twenty-four thousand, two hundred forty-two".