30321434 has 16 divisors (see below), whose sum is σ = 53434080. Its totient is φ = 12722160.

The previous prime is 30321433. The next prime is 30321437. The reversal of 30321434 is 43412303.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (30321433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52724 + ... + 53295.

It is an arithmetic number, because the mean of its divisors is an integer number (3339630).

Almost surely, 2^30321434 is an apocalyptic number.

30321434 is a deficient number, since it is larger than the sum of its proper divisors (23112646).

30321434 is a wasteful number, since it uses less digits than its factorization.

30321434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106045.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 30321434 is about 5506.4901706986. The cubic root of 30321434 is about 311.8290552169.

Adding to 30321434 its reverse (43412303), we get a palindrome (73733737).

The spelling of 30321434 in words is "thirty million, three hundred twenty-one thousand, four hundred thirty-four".