42018075 has 48 divisors (see below), whose sum is σ = 84220800. Its totient is φ = 20368800.

The previous prime is 42018073. The next prime is 42018103. The reversal of 42018075 is 57081024.

It is not a de Polignac number, because 42018075 - 2¹ = 42018073 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (42018073) 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, 4596 + ... + 10254.

It is an arithmetic number, because the mean of its divisors is an integer number (1754600).

Almost surely, 2^42018075 is an apocalyptic number.

42018075 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

42018075 is an abundant number, since it is smaller than the sum of its proper divisors (42202725).

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

42018075 is a wasteful number, since it uses less digits than its factorization.

42018075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5689 (or 5678 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 42018075 is about 6482.1350649304. The cubic root of 42018075 is about 347.6525217670.

Adding to 42018075 its reverse (57081024), we get a palindrome (99099099).

The spelling of 42018075 in words is "forty-two million, eighteen thousand, seventy-five".