30385142 has 8 divisors (see below), whose sum is σ = 47976600. Its totient is φ = 14392944.

The previous prime is 30385129. The next prime is 30385151. The reversal of 30385142 is 24158303.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 399767 + ... + 399842.

It is an arithmetic number, because the mean of its divisors is an integer number (5997075).

Almost surely, 2^30385142 is an apocalyptic number.

30385142 is a deficient number, since it is larger than the sum of its proper divisors (17591458).

30385142 is a wasteful number, since it uses less digits than its factorization.

30385142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799630.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 30385142 is about 5512.2719453960. The cubic root of 30385142 is about 312.0472958654.

The spelling of 30385142 in words is "thirty million, three hundred eighty-five thousand, one hundred forty-two".