42618117 has 16 divisors (see below), whose sum is σ = 59723840. Its totient is φ = 26998272.

The previous prime is 42618113. The next prime is 42618127. The reversal of 42618117 is 71181624.

It is not a de Polignac number, because 42618117 - 2² = 42618113 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42618113) 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, 309 + ... + 9237.

It is an arithmetic number, because the mean of its divisors is an integer number (3732740).

Almost surely, 2^42618117 is an apocalyptic number.

It is an amenable number.

42618117 is a deficient number, since it is larger than the sum of its proper divisors (17105723).

42618117 is a wasteful number, since it uses less digits than its factorization.

42618117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9012.

The product of its digits is 2688, while the sum is 30.

The square root of 42618117 is about 6528.2552799351. The cubic root of 42618117 is about 349.2995979658.

The spelling of 42618117 in words is "forty-two million, six hundred eighteen thousand, one hundred seventeen".