40838660 has 12 divisors (see below), whose sum is σ = 85761228. Its totient is φ = 16335456.

The previous prime is 40838653. The next prime is 40838663. The reversal of 40838660 is 6683804.

It can be written as a sum of positive squares in 2 ways, for example, as 9746884 + 31091776 = 3122^2 + 5576^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40838660.

It is not an unprimeable number, because it can be changed into a prime (40838663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1020947 + ... + 1020986.

It is an arithmetic number, because the mean of its divisors is an integer number (7146769).

Almost surely, 2^40838660 is an apocalyptic number.

It is an amenable number.

40838660 is an abundant number, since it is smaller than the sum of its proper divisors (44922568).

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

40838660 is a wasteful number, since it uses less digits than its factorization.

40838660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2041942 (or 2041940 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 40838660 is about 6390.5132814196. The cubic root of 40838660 is about 344.3688242673.

The spelling of 40838660 in words is "forty million, eight hundred thirty-eight thousand, six hundred sixty".