30143320 has 16 divisors (see below), whose sum is σ = 67822560. Its totient is φ = 12057312.

The previous prime is 30143303. The next prime is 30143327. The reversal of 30143320 is 2334103.

It is a junction number, because it is equal to n+sod(n) for n = 30143294 and 30143303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30143327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 376752 + ... + 376831.

It is an arithmetic number, because the mean of its divisors is an integer number (4238910).

Almost surely, 2^30143320 is an apocalyptic number.

It is an amenable number.

30143320 is an abundant number, since it is smaller than the sum of its proper divisors (37679240).

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

30143320 is a wasteful number, since it uses less digits than its factorization.

30143320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753594 (or 753590 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 30143320 is about 5490.2932526414. The cubic root of 30143320 is about 311.2172742376.

Adding to 30143320 its reverse (2334103), we get a palindrome (32477423).

The spelling of 30143320 in words is "thirty million, one hundred forty-three thousand, three hundred twenty".