42645715 has 8 divisors (see below), whose sum is σ = 58485600. Its totient is φ = 29242752.

The previous prime is 42645683. The next prime is 42645751. The reversal of 42645715 is 51754624.

42645715 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 42645715 - 2⁵ = 42645683 is a prime.

It is a super-2 number, since 2×42645715² = 3637314015722450, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 609190 + ... + 609259.

It is an arithmetic number, because the mean of its divisors is an integer number (7310700).

Almost surely, 2^42645715 is an apocalyptic number.

42645715 is a deficient number, since it is larger than the sum of its proper divisors (15839885).

42645715 is a wasteful number, since it uses less digits than its factorization.

42645715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1218461.

The product of its digits is 33600, while the sum is 34.

The square root of 42645715 is about 6530.3686725942. The cubic root of 42645715 is about 349.3749797588.

The spelling of 42645715 in words is "forty-two million, six hundred forty-five thousand, seven hundred fifteen".