40660580 has 24 divisors (see below), whose sum is σ = 86236920. Its totient is φ = 16102400.

The previous prime is 40660577. The next prime is 40660637. The reversal of 40660580 is 8506604.

40660580 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 4 ways, for example, as 22733824 + 17926756 = 4768^2 + 4234^2 .

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 7 ways as a sum of consecutive naturals, for example, 8045 + ... + 12084.

It is an arithmetic number, because the mean of its divisors is an integer number (3593205).

Almost surely, 2^40660580 is an apocalyptic number.

It is an amenable number.

40660580 is an abundant number, since it is smaller than the sum of its proper divisors (45576340).

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

40660580 is a wasteful number, since it uses less digits than its factorization.

40660580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20239 (or 20237 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 40660580 is about 6376.5649059662. The cubic root of 40660580 is about 343.8675463566.

The spelling of 40660580 in words is "forty million, six hundred sixty thousand, five hundred eighty".