30013144 has 32 divisors (see below), whose sum is σ = 66535200. Its totient is φ = 12418560.

The previous prime is 30013133. The next prime is 30013153. The reversal of 30013144 is 44131003.

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, 7617 + ... + 10864.

It is an arithmetic number, because the mean of its divisors is an integer number (2079225).

Almost surely, 2^30013144 is an apocalyptic number.

It is an amenable number.

30013144 is an abundant number, since it is smaller than the sum of its proper divisors (36522056).

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

30013144 is a wasteful number, since it uses less digits than its factorization.

30013144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18523 (or 18519 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 30013144 is about 5478.4253212032. The cubic root of 30013144 is about 310.7686233741.

Adding to 30013144 its reverse (44131003), we get a palindrome (74144147).

The spelling of 30013144 in words is "thirty million, thirteen thousand, one hundred forty-four".