40849317 has 24 divisors (see below), whose sum is σ = 62748504. Its totient is φ = 25519104.

The previous prime is 40849307. The next prime is 40849343. The reversal of 40849317 is 71394804.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 285156 + 40564161 = 534^2 + 6369^2 .

It is not a de Polignac number, because 40849317 - 2⁶ = 40849253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40849307) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47463 + ... + 48315.

It is an arithmetic number, because the mean of its divisors is an integer number (2614521).

Almost surely, 2^40849317 is an apocalyptic number.

It is an amenable number.

40849317 is a deficient number, since it is larger than the sum of its proper divisors (21899187).

40849317 is a wasteful number, since it uses less digits than its factorization.

40849317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189 (or 1186 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 40849317 is about 6391.3470411174. The cubic root of 40849317 is about 344.3987764366.

The spelling of 40849317 in words is "forty million, eight hundred forty-nine thousand, three hundred seventeen".