513949224 has 16 divisors (see below), whose sum is σ = 1284873120. Its totient is φ = 171316400.

The previous prime is 513949213. The next prime is 513949229. The reversal of 513949224 is 422949315.

It is not an unprimeable number, because it can be changed into a prime (513949229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10707252 + ... + 10707299.

It is an arithmetic number, because the mean of its divisors is an integer number (80304570).

Almost surely, 2^513949224 is an apocalyptic number.

It is an amenable number.

513949224 is an abundant number, since it is smaller than the sum of its proper divisors (770923896).

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

513949224 is a wasteful number, since it uses less digits than its factorization.

513949224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21414560 (or 21414556 counting only the distinct ones).

The product of its digits is 77760, while the sum is 39.

The square root of 513949224 is about 22670.4482531775. The cubic root of 513949224 is about 801.0139352097.

Subtracting from 513949224 its reverse (422949315), we obtain a palindrome (90999909).

The spelling of 513949224 in words is "five hundred thirteen million, nine hundred forty-nine thousand, two hundred twenty-four".