513212442 has 16 divisors (see below), whose sum is σ = 1026751680. Its totient is φ = 171016352.

The previous prime is 513212437. The next prime is 513212467. The reversal of 513212442 is 244212315.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9934 + ... + 33542.

It is an arithmetic number, because the mean of its divisors is an integer number (64171980).

Almost surely, 2^513212442 is an apocalyptic number.

513212442 is an abundant number, since it is smaller than the sum of its proper divisors (513539238).

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

513212442 is a wasteful number, since it uses less digits than its factorization.

513212442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27237.

The product of its digits is 1920, while the sum is 24.

The square root of 513212442 is about 22654.1925921009. The cubic root of 513212442 is about 800.6309824040.

Adding to 513212442 its reverse (244212315), we get a palindrome (757424757).

The spelling of 513212442 in words is "five hundred thirteen million, two hundred twelve thousand, four hundred forty-two".