42395515 has 16 divisors (see below), whose sum is σ = 51644736. Its totient is φ = 33408000.

The previous prime is 42395513. The next prime is 42395519. The reversal of 42395515 is 51559324.

It is not a de Polignac number, because 42395515 - 2¹ = 42395513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42395513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175795 + ... + 176035.

It is an arithmetic number, because the mean of its divisors is an integer number (3227796).

Almost surely, 2^42395515 is an apocalyptic number.

42395515 is a deficient number, since it is larger than the sum of its proper divisors (9249221).

42395515 is a wasteful number, since it uses less digits than its factorization.

42395515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630.

The product of its digits is 27000, while the sum is 34.

The square root of 42395515 is about 6511.1838401323. The cubic root of 42395515 is about 348.6903847604.

The spelling of 42395515 in words is "forty-two million, three hundred ninety-five thousand, five hundred fifteen".