40218201828 has 72 divisors (see below), whose sum is σ = 116339950272. Its totient is φ = 11475680832.

The previous prime is 40218201781. The next prime is 40218201851. The reversal of 40218201828 is 82810281204.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 40218201792 and 40218201801.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 85351 + ... + 296177.

Almost surely, 2^40218201828 is an apocalyptic number.

It is an amenable number.

40218201828 is an abundant number, since it is smaller than the sum of its proper divisors (76121748444).

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

40218201828 is a wasteful number, since it uses less digits than its factorization.

40218201828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211601 (or 211596 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 36.

The spelling of 40218201828 in words is "forty billion, two hundred eighteen million, two hundred one thousand, eight hundred twenty-eight".