40947316 has 6 divisors (see below), whose sum is σ = 71657810. Its totient is φ = 20473656.

The previous prime is 40947253. The next prime is 40947317. The reversal of 40947316 is 61374904.

It is a happy number.

40947316 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 only one way, i.e., 21622500 + 19324816 = 4650^2 + 4396^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40947317) by changing a digit.

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 as a sum of consecutive naturals, namely, 5118411 + ... + 5118418.

Almost surely, 2^40947316 is an apocalyptic number.

It is an amenable number.

40947316 is a deficient number, since it is larger than the sum of its proper divisors (30710494).

40947316 is a wasteful number, since it uses less digits than its factorization.

40947316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10236833 (or 10236831 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 40947316 is about 6399.0089857727. The cubic root of 40947316 is about 344.6739648962.

The spelling of 40947316 in words is "forty million, nine hundred forty-seven thousand, three hundred sixteen".