442513515 has 32 divisors (see below), whose sum is σ = 753016320. Its totient is φ = 221266944.

The previous prime is 442513471. The next prime is 442513529. The reversal of 442513515 is 515315244.

It is not a de Polignac number, because 442513515 - 2¹⁶ = 442447979 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19642 + ... + 35648.

It is an arithmetic number, because the mean of its divisors is an integer number (23531760).

Almost surely, 2^442513515 is an apocalyptic number.

442513515 is a deficient number, since it is larger than the sum of its proper divisors (310502805).

442513515 is a wasteful number, since it uses less digits than its factorization.

442513515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16131.

The product of its digits is 12000, while the sum is 30.

The square root of 442513515 is about 21036.0052053616. The cubic root of 442513515 is about 762.0360427561.

Adding to 442513515 its reverse (515315244), we get a palindrome (957828759).

The spelling of 442513515 in words is "four hundred forty-two million, five hundred thirteen thousand, five hundred fifteen".