515232442 has 8 divisors (see below), whose sum is σ = 772957332. Its totient is φ = 257580000.

The previous prime is 515232397. The next prime is 515232449. The reversal of 515232442 is 244232515.

It can be written as a sum of positive squares in 2 ways, for example, as 439698961 + 75533481 = 20969^2 + 8691^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 515232442.

It is not an unprimeable number, because it can be changed into a prime (515232449) 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, 6192 + ... + 32692.

Almost surely, 2^515232442 is an apocalyptic number.

515232442 is a deficient number, since it is larger than the sum of its proper divisors (257724890).

515232442 is a wasteful number, since it uses less digits than its factorization.

515232442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36224.

The product of its digits is 9600, while the sum is 28.

The square root of 515232442 is about 22698.7321672379. The cubic root of 515232442 is about 801.6800329336.

Adding to 515232442 its reverse (244232515), we get a palindrome (759464957).

The spelling of 515232442 in words is "five hundred fifteen million, two hundred thirty-two thousand, four hundred forty-two".