30019142 has 8 divisors (see below), whose sum is σ = 45204696. Its totient is φ = 14950912.

The previous prime is 30019139. The next prime is 30019153. The reversal of 30019142 is 24191003.

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

It is a super-2 number, since 2×30019142² = 1802297772832328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 28688 + ... + 29715.

It is an arithmetic number, because the mean of its divisors is an integer number (5650587).

Almost surely, 2^30019142 is an apocalyptic number.

30019142 is a deficient number, since it is larger than the sum of its proper divisors (15185554).

30019142 is a wasteful number, since it uses less digits than its factorization.

30019142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58662.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 30019142 is about 5478.9727139310. The cubic root of 30019142 is about 310.7893239272.

The spelling of 30019142 in words is "thirty million, nineteen thousand, one hundred forty-two".