30142344 has 16 divisors (see below), whose sum is σ = 75355920. Its totient is φ = 10047440.

The previous prime is 30142313. The next prime is 30142361. The reversal of 30142344 is 44324103.

It is a self number, because there is not a number n which added to its sum of digits gives 30142344.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 627942 + ... + 627989.

It is an arithmetic number, because the mean of its divisors is an integer number (4709745).

Almost surely, 2^30142344 is an apocalyptic number.

It is an amenable number.

30142344 is an abundant number, since it is smaller than the sum of its proper divisors (45213576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30142344 is a wasteful number, since it uses less digits than its factorization.

30142344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255940 (or 1255936 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 30142344 is about 5490.2043677809. The cubic root of 30142344 is about 311.2139152696.

Adding to 30142344 its reverse (44324103), we get a palindrome (74466447).

The spelling of 30142344 in words is "thirty million, one hundred forty-two thousand, three hundred forty-four".