42018097 has 6 divisors (see below), whose sum is σ = 46185314. Its totient is φ = 38198160.

The previous prime is 42018073. The next prime is 42018103. The reversal of 42018097 is 79081024.

It can be written as a sum of positive squares in only one way, i.e., 22268961 + 19749136 = 4719^2 + 4444^2 .

It is a de Polignac number, because none of the positive numbers 2^k-42018097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42018017) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 173508 + ... + 173749.

Almost surely, 2^42018097 is an apocalyptic number.

It is an amenable number.

42018097 is a deficient number, since it is larger than the sum of its proper divisors (4167217).

42018097 is a wasteful number, since it uses less digits than its factorization.

42018097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347279 (or 347268 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 42018097 is about 6482.1367619019. The cubic root of 42018097 is about 347.6525824421.

The spelling of 42018097 in words is "forty-two million, eighteen thousand, ninety-seven".