515642449 has 8 divisors (see below), whose sum is σ = 589612608. Its totient is φ = 441749040.

The previous prime is 515642443. The next prime is 515642467. The reversal of 515642449 is 944246515.

515642449 is nontrivially palindromic in base 6.

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

It is a cyclic number.

It is not a de Polignac number, because 515642449 - 2³ = 515642441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (515642441) 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, 3982 + ... + 32359.

It is an arithmetic number, because the mean of its divisors is an integer number (73701576).

Almost surely, 2^515642449 is an apocalyptic number.

It is an amenable number.

515642449 is a deficient number, since it is larger than the sum of its proper divisors (73970159).

515642449 is a wasteful number, since it uses less digits than its factorization.

515642449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38375.

The product of its digits is 172800, while the sum is 40.

The square root of 515642449 is about 22707.7618668155. The cubic root of 515642449 is about 801.8926277733.

The spelling of 515642449 in words is "five hundred fifteen million, six hundred forty-two thousand, four hundred forty-nine".