30143484 has 36 divisors (see below), whose sum is σ = 87081904. Its totient is φ = 8612352.

The previous prime is 30143483. The next prime is 30143507. The reversal of 30143484 is 48434103.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30143483) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59557 + ... + 60060.

Almost surely, 2^30143484 is an apocalyptic number.

It is an amenable number.

30143484 is an abundant number, since it is smaller than the sum of its proper divisors (56938420).

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

30143484 is a wasteful number, since it uses less digits than its factorization.

30143484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119634 (or 119629 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 30143484 is about 5490.3081880710. The cubic root of 30143484 is about 311.2178386472.

Adding to 30143484 its reverse (48434103), we get a palindrome (78577587).

The spelling of 30143484 in words is "thirty million, one hundred forty-three thousand, four hundred eighty-four".