42418887 has 32 divisors (see below), whose sum is σ = 69726720. Its totient is φ = 22394880.

The previous prime is 42418861. The next prime is 42418897. The reversal of 42418887 is 78881424.

It is not a de Polignac number, because 42418887 - 2⁶ = 42418823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42418847) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15063 + ... + 17655.

It is an arithmetic number, because the mean of its divisors is an integer number (2178960).

Almost surely, 2^42418887 is an apocalyptic number.

42418887 is a deficient number, since it is larger than the sum of its proper divisors (27307833).

42418887 is a wasteful number, since it uses less digits than its factorization.

42418887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2663.

The product of its digits is 114688, while the sum is 42.

The square root of 42418887 is about 6512.9783509543. The cubic root of 42418887 is about 348.7544488840.

The spelling of 42418887 in words is "forty-two million, four hundred eighteen thousand, eight hundred eighty-seven".