30042434 has 16 divisors (see below), whose sum is σ = 49361400. Its totient is φ = 13649664.

The previous prime is 30042427. The next prime is 30042437. The reversal of 30042434 is 43424003.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 28590409 + 1452025 = 5347^2 + 1205^2 .

It is not an unprimeable number, because it can be changed into a prime (30042437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14249 + ... + 16220.

Almost surely, 2^30042434 is an apocalyptic number.

30042434 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

30042434 is a deficient number, since it is larger than the sum of its proper divisors (19318966).

30042434 is a wasteful number, since it uses less digits than its factorization.

30042434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30517.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 30042434 is about 5481.0978827239. The cubic root of 30042434 is about 310.8696841355.

Adding to 30042434 its reverse (43424003), we get a palindrome (73466437).

It can be divided in two parts, 300424 and 34, that multiplied together give a square (10214416 = 3196²).

The spelling of 30042434 in words is "thirty million, forty-two thousand, four hundred thirty-four".