40813317 has 12 divisors (see below), whose sum is σ = 59012044. Its totient is φ = 27181440.

The previous prime is 40813307. The next prime is 40813361. The reversal of 40813317 is 71331804.

It can be written as a sum of positive squares in 2 ways, for example, as 17715681 + 23097636 = 4209^2 + 4806^2 .

It is not a de Polignac number, because 40813317 - 2¹² = 40809221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40813307) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11517 + ... + 14637.

Almost surely, 2^40813317 is an apocalyptic number.

It is an amenable number.

40813317 is a deficient number, since it is larger than the sum of its proper divisors (18198727).

40813317 is a wasteful number, since it uses less digits than its factorization.

40813317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4580 (or 4577 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 40813317 is about 6388.5301126315. The cubic root of 40813317 is about 344.2975752349.

The spelling of 40813317 in words is "forty million, eight hundred thirteen thousand, three hundred seventeen".