42245315 has 16 divisors (see below), whose sum is σ = 59935680. Its totient is φ = 27968640.

The previous prime is 42245311. The next prime is 42245317. The reversal of 42245315 is 51354224.

It is a happy number.

It is not a de Polignac number, because 42245315 - 2² = 42245311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42245311) 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 15 ways as a sum of consecutive naturals, for example, 19796 + ... + 21825.

It is an arithmetic number, because the mean of its divisors is an integer number (3745980).

Almost surely, 2^42245315 is an apocalyptic number.

42245315 is a deficient number, since it is larger than the sum of its proper divisors (17690365).

42245315 is a wasteful number, since it uses less digits than its factorization.

42245315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41662.

The product of its digits is 4800, while the sum is 26.

The square root of 42245315 is about 6499.6396053935. The cubic root of 42245315 is about 348.2781142040.

Adding to 42245315 its reverse (51354224), we get a palindrome (93599539).

The spelling of 42245315 in words is "forty-two million, two hundred forty-five thousand, three hundred fifteen".