40661316 has 36 divisors (see below), whose sum is σ = 105177072. Its totient is φ = 13238064.

The previous prime is 40661293. The next prime is 40661317. The reversal of 40661316 is 61316604.

40661316 is a `hidden beast` number, since 40 + 6 + 613 + 1 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 40661316.

It is not an unprimeable number, because it can be changed into a prime (40661317) 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 11 ways as a sum of consecutive naturals, for example, 11586 + ... + 14681.

Almost surely, 2^40661316 is an apocalyptic number.

It is an amenable number.

40661316 is an abundant number, since it is smaller than the sum of its proper divisors (64515756).

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

40661316 is a wasteful number, since it uses less digits than its factorization.

40661316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26320 (or 26315 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 40661316 is about 6376.6226170285. The cubic root of 40661316 is about 343.8696211342.

The spelling of 40661316 in words is "forty million, six hundred sixty-one thousand, three hundred sixteen".