40488018 has 16 divisors (see below), whose sum is σ = 82304256. Its totient is φ = 13274640.

The previous prime is 40488017. The next prime is 40488043. The reversal of 40488018 is 81088404.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 40488018.

It is not an unprimeable number, because it can be changed into a prime (40488011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54946 + ... + 55677.

It is an arithmetic number, because the mean of its divisors is an integer number (5144016).

Almost surely, 2^40488018 is an apocalyptic number.

40488018 is an abundant number, since it is smaller than the sum of its proper divisors (41816238).

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

40488018 is a wasteful number, since it uses less digits than its factorization.

40488018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110689.

The product of its (nonzero) digits is 8192, while the sum is 33.

The square root of 40488018 is about 6363.0195662123. The cubic root of 40488018 is about 343.3804028428.

The spelling of 40488018 in words is "forty million, four hundred eighty-eight thousand, eighteen".