30340242 has 24 divisors (see below), whose sum is σ = 66418716. Its totient is φ = 10008576.

The previous prime is 30340231. The next prime is 30340249. The reversal of 30340242 is 24204303.

It can be written as a sum of positive squares in 2 ways, for example, as 27783441 + 2556801 = 5271^2 + 1599^2 .

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 (30340249) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6943 + ... + 10434.

Almost surely, 2^30340242 is an apocalyptic number.

30340242 is an abundant number, since it is smaller than the sum of its proper divisors (36078474).

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

30340242 is a wasteful number, since it uses less digits than its factorization.

30340242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17482 (or 17479 counting only the distinct ones).

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

The square root of 30340242 is about 5508.1977088699. The cubic root of 30340242 is about 311.8935164233.

Adding to 30340242 its reverse (24204303), we get a palindrome (54544545).

The spelling of 30340242 in words is "thirty million, three hundred forty thousand, two hundred forty-two".