30321934 has 4 divisors (see below), whose sum is σ = 45482904. Its totient is φ = 15160966.

The previous prime is 30321913. The next prime is 30321943. The reversal of 30321934 is 43912303.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 30321899 and 30321908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7580482 + ... + 7580485.

It is an arithmetic number, because the mean of its divisors is an integer number (11370726).

Almost surely, 2^30321934 is an apocalyptic number.

30321934 is a deficient number, since it is larger than the sum of its proper divisors (15160970).

30321934 is a wasteful number, since it uses less digits than its factorization.

30321934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15160969.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 30321934 is about 5506.5355714823. The cubic root of 30321934 is about 311.8307692263.

The spelling of 30321934 in words is "thirty million, three hundred twenty-one thousand, nine hundred thirty-four".