30144988 has 12 divisors (see below), whose sum is σ = 53648280. Its totient is φ = 14816912.

The previous prime is 30144979. The next prime is 30144991. The reversal of 30144988 is 88944103.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 63631 + ... + 64102.

It is an arithmetic number, because the mean of its divisors is an integer number (4470690).

Almost surely, 2^30144988 is an apocalyptic number.

It is an amenable number.

30144988 is a deficient number, since it is larger than the sum of its proper divisors (23503292).

30144988 is a wasteful number, since it uses less digits than its factorization.

30144988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127796 (or 127794 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 30144988 is about 5490.4451549943. The cubic root of 30144988 is about 311.2230146010.

The spelling of 30144988 in words is "thirty million, one hundred forty-four thousand, nine hundred eighty-eight".