30142343 has 16 divisors (see below), whose sum is σ = 39792384. Its totient is φ = 22104960.

The previous prime is 30142313. The next prime is 30142361. The reversal of 30142343 is 34324103.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30142343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30142313) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 10205 + ... + 12822.

It is an arithmetic number, because the mean of its divisors is an integer number (2487024).

Almost surely, 2^30142343 is an apocalyptic number.

30142343 is a deficient number, since it is larger than the sum of its proper divisors (9650041).

30142343 is a wasteful number, since it uses less digits than its factorization.

30142343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23062.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 30142343 is about 5490.2042767096. The cubic root of 30142343 is about 311.2139118280.

Adding to 30142343 its reverse (34324103), we get a palindrome (64466446).

The spelling of 30142343 in words is "thirty million, one hundred forty-two thousand, three hundred forty-three".