500013144 has 24 divisors (see below), whose sum is σ = 1354202460. Its totient is φ = 166671024.

The previous prime is 500013103. The next prime is 500013179. The reversal of 500013144 is 441310005.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3472242 + ... + 3472385.

Almost surely, 2^500013144 is an apocalyptic number.

It is an amenable number.

500013144 is an abundant number, since it is smaller than the sum of its proper divisors (854189316).

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

500013144 is a wasteful number, since it uses less digits than its factorization.

500013144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6944639 (or 6944632 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 500013144 is about 22360.9736818413. The cubic root of 500013144 is about 793.7074808563.

Adding to 500013144 its reverse (441310005), we get a palindrome (941323149).

The spelling of 500013144 in words is "five hundred million, thirteen thousand, one hundred forty-four".