30340142 has 16 divisors (see below), whose sum is σ = 52306560. Its totient is φ = 12929208.

The previous prime is 30340133. The next prime is 30340181. The reversal of 30340142 is 24104303.

It is a self number, because there is not a number n which added to its sum of digits gives 30340142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3548 + ... + 8559.

It is an arithmetic number, because the mean of its divisors is an integer number (3269160).

Almost surely, 2^30340142 is an apocalyptic number.

30340142 is a deficient number, since it is larger than the sum of its proper divisors (21966418).

30340142 is a wasteful number, since it uses less digits than its factorization.

30340142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12295.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 30340142 is about 5508.1886314831. The cubic root of 30340142 is about 311.8931737609.

Adding to 30340142 its reverse (24104303), we get a palindrome (54444445).

The spelling of 30340142 in words is "thirty million, three hundred forty thousand, one hundred forty-two".