30144885 has 16 divisors (see below), whose sum is σ = 48554880. Its totient is φ = 15969600.

The previous prime is 30144883. The next prime is 30144889. The reversal of 30144885 is 58844103.

It is not a de Polignac number, because 30144885 - 2¹ = 30144883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30144883) by changing a digit.

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, 4390 + ... + 8919.

It is an arithmetic number, because the mean of its divisors is an integer number (3034680).

Almost surely, 2^30144885 is an apocalyptic number.

It is an amenable number.

30144885 is a deficient number, since it is larger than the sum of its proper divisors (18409995).

30144885 is a wasteful number, since it uses less digits than its factorization.

30144885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13468.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 30144885 is about 5490.4357750547. The cubic root of 30144885 is about 311.2226601363. Note that the first 3 decimals are identical.

Adding to 30144885 its reverse (58844103), we get a palindrome (88988988).

The spelling of 30144885 in words is "thirty million, one hundred forty-four thousand, eight hundred eighty-five".