515434442 has 8 divisors (see below), whose sum is σ = 773760000. Its totient is φ = 257514444.

The previous prime is 515434433. The next prime is 515434463. The reversal of 515434442 is 244434515.

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

It is a junction number, because it is equal to n+sod(n) for n = 515434399 and 515434408.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98192 + ... + 103307.

It is an arithmetic number, because the mean of its divisors is an integer number (96720000).

Almost surely, 2^515434442 is an apocalyptic number.

515434442 is a deficient number, since it is larger than the sum of its proper divisors (258325558).

515434442 is a wasteful number, since it uses less digits than its factorization.

515434442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202780.

The product of its digits is 38400, while the sum is 32.

The square root of 515434442 is about 22703.1813189253. The cubic root of 515434442 is about 801.7847870827.

Adding to 515434442 its reverse (244434515), we get a palindrome (759868957).

The spelling of 515434442 in words is "five hundred fifteen million, four hundred thirty-four thousand, four hundred forty-two".