30144560 has 20 divisors (see below), whose sum is σ = 70086288. Its totient is φ = 12057792.

The previous prime is 30144557. The next prime is 30144563. The reversal of 30144560 is 6544103.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30144557) and next prime (30144563).

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (30144563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188324 + ... + 188483.

Almost surely, 2^30144560 is an apocalyptic number.

It is an amenable number.

30144560 is an abundant number, since it is smaller than the sum of its proper divisors (39941728).

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

30144560 is a wasteful number, since it uses less digits than its factorization.

30144560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376820 (or 376814 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 30144560 is about 5490.4061780528. The cubic root of 30144560 is about 311.2215416742.

Adding to 30144560 its reverse (6544103), we get a palindrome (36688663).

The spelling of 30144560 in words is "thirty million, one hundred forty-four thousand, five hundred sixty".