30234142 has 4 divisors (see below), whose sum is σ = 45351216. Its totient is φ = 15117070.

The previous prime is 30234133. The next prime is 30234157. The reversal of 30234142 is 24143203.

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

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, 7558534 + ... + 7558537.

It is an arithmetic number, because the mean of its divisors is an integer number (11337804).

Almost surely, 2^30234142 is an apocalyptic number.

30234142 is a deficient number, since it is larger than the sum of its proper divisors (15117074).

30234142 is a wasteful number, since it uses less digits than its factorization.

30234142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15117073.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 30234142 is about 5498.5581746491. The cubic root of 30234142 is about 311.5295273314.

Adding to 30234142 its reverse (24143203), we get a palindrome (54377345).

The spelling of 30234142 in words is "thirty million, two hundred thirty-four thousand, one hundred forty-two".