30144285 has 16 divisors (see below), whose sum is σ = 53590080. Its totient is φ = 16076880.

The previous prime is 30144269. The next prime is 30144293. The reversal of 30144285 is 58244103.

It is not a de Polignac number, because 30144285 - 2⁴ = 30144269 is a prime.

It is a super-2 number, since 2×30144285² = 1817355836322450, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 15 ways as a sum of consecutive naturals, for example, 111511 + ... + 111780.

It is an arithmetic number, because the mean of its divisors is an integer number (3349380).

Almost surely, 2^30144285 is an apocalyptic number.

It is an amenable number.

30144285 is a deficient number, since it is larger than the sum of its proper divisors (23445795).

30144285 is a wasteful number, since it uses less digits than its factorization.

30144285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223305 (or 223299 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 30144285 is about 5490.3811343112. The cubic root of 30144285 is about 311.2205952770.

Adding to 30144285 its reverse (58244103), we get a palindrome (88388388).

The spelling of 30144285 in words is "thirty million, one hundred forty-four thousand, two hundred eighty-five".