42504315 has 24 divisors (see below), whose sum is σ = 79111440. Its totient is φ = 19430208.

The previous prime is 42504313. The next prime is 42504337. The reversal of 42504315 is 51340524.

It is not a de Polignac number, because 42504315 - 2¹ = 42504313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42504313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28180 + ... + 29649.

It is an arithmetic number, because the mean of its divisors is an integer number (3296310).

Almost surely, 2^42504315 is an apocalyptic number.

42504315 is a deficient number, since it is larger than the sum of its proper divisors (36607125).

42504315 is a wasteful number, since it uses less digits than its factorization.

42504315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57851 (or 57844 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 42504315 is about 6519.5333421956. The cubic root of 42504315 is about 348.9884124088.

Adding to 42504315 its reverse (51340524), we get a palindrome (93844839).

The spelling of 42504315 in words is "forty-two million, five hundred four thousand, three hundred fifteen".