513244442 has 16 divisors (see below), whose sum is σ = 774090240. Its totient is φ = 255218688.

The previous prime is 513244429. The next prime is 513244447. The reversal of 513244442 is 244442315.

It is not an unprimeable number, because it can be changed into a prime (513244447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 471623 + ... + 472709.

It is an arithmetic number, because the mean of its divisors is an integer number (48380640).

Almost surely, 2^513244442 is an apocalyptic number.

513244442 is a deficient number, since it is larger than the sum of its proper divisors (260845798).

513244442 is a wasteful number, since it uses less digits than its factorization.

513244442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2165.

The product of its digits is 15360, while the sum is 29.

The square root of 513244442 is about 22654.8988521247. The cubic root of 513244442 is about 800.6476224650.

Adding to 513244442 its reverse (244442315), we get a palindrome (757686757).

The spelling of 513244442 in words is "five hundred thirteen million, two hundred forty-four thousand, four hundred forty-two".