42668065 has 16 divisors (see below), whose sum is σ = 55984896. Its totient is φ = 30960000.

The previous prime is 42668029. The next prime is 42668099. The reversal of 42668065 is 56086624.

It is not a de Polignac number, because 42668065 - 2²³ = 34279457 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40789 + ... + 41821.

It is an arithmetic number, because the mean of its divisors is an integer number (3499056).

Almost surely, 2^42668065 is an apocalyptic number.

It is an amenable number.

42668065 is a deficient number, since it is larger than the sum of its proper divisors (13316831).

42668065 is a wasteful number, since it uses less digits than its factorization.

42668065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1800.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 42668065 is about 6532.0796841435. The cubic root of 42668065 is about 349.4360032175.

The spelling of 42668065 in words is "forty-two million, six hundred sixty-eight thousand, sixty-five".