30319442 has 8 divisors (see below), whose sum is σ = 47047500. Its totient is φ = 14636944.

The previous prime is 30319439. The next prime is 30319447. The reversal of 30319442 is 24491303.

It can be written as a sum of positive squares in 2 ways, for example, as 27888961 + 2430481 = 5281^2 + 1559^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (30319447) 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 3 ways as a sum of consecutive naturals, for example, 261317 + ... + 261432.

Almost surely, 2^30319442 is an apocalyptic number.

30319442 is a deficient number, since it is larger than the sum of its proper divisors (16728058).

30319442 is a wasteful number, since it uses less digits than its factorization.

30319442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522780.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 30319442 is about 5506.3092902597. The cubic root of 30319442 is about 311.8222264163.

The spelling of 30319442 in words is "thirty million, three hundred nineteen thousand, four hundred forty-two".