42018508 has 48 divisors (see below), whose sum is σ = 86841664. Its totient is φ = 17418240.

The previous prime is 42018503. The next prime is 42018511. The reversal of 42018508 is 80581024.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (42018503) 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, 124516 + ... + 124852.

Almost surely, 2^42018508 is an apocalyptic number.

It is an amenable number.

42018508 is an abundant number, since it is smaller than the sum of its proper divisors (44823156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42018508 is a wasteful number, since it uses less digits than its factorization.

42018508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482 (or 480 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 42018508 is about 6482.1684643335. The cubic root of 42018508 is about 347.6537159596.

The spelling of 42018508 in words is "forty-two million, eighteen thousand, five hundred eight".