42618885 has 48 divisors (see below), whose sum is σ = 73579968. Its totient is φ = 21049600.

The previous prime is 42618883. The next prime is 42618889. The reversal of 42618885 is 58881624.

It is not a de Polignac number, because 42618885 - 2¹ = 42618883 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42618883) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 325270 + ... + 325400.

It is an arithmetic number, because the mean of its divisors is an integer number (1532916).

Almost surely, 2^42618885 is an apocalyptic number.

It is an amenable number.

42618885 is a deficient number, since it is larger than the sum of its proper divisors (30961083).

42618885 is a wasteful number, since it uses less digits than its factorization.

42618885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226 (or 203 counting only the distinct ones).

The product of its digits is 122880, while the sum is 42.

The square root of 42618885 is about 6528.3141008993. The cubic root of 42618885 is about 349.3016961383.

The spelling of 42618885 in words is "forty-two million, six hundred eighteen thousand, eight hundred eighty-five".