40082660 has 12 divisors (see below), whose sum is σ = 84173628. Its totient is φ = 16033056.

The previous prime is 40082657. The next prime is 40082671. The reversal of 40082660 is 6628004.

40082660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 26481316 + 13601344 = 5146^2 + 3688^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1002047 + ... + 1002086.

It is an arithmetic number, because the mean of its divisors is an integer number (7014469).

Almost surely, 2^40082660 is an apocalyptic number.

It is an amenable number.

40082660 is an abundant number, since it is smaller than the sum of its proper divisors (44090968).

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

40082660 is a wasteful number, since it uses less digits than its factorization.

40082660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2004142 (or 2004140 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 40082660 is about 6331.0867945401. The cubic root of 40082660 is about 342.2306049339.

Subtracting from 40082660 its reverse (6628004), we obtain a square (33454656 = 5784²).

The spelling of 40082660 in words is "forty million, eighty-two thousand, six hundred sixty".