40302313 has 8 divisors (see below), whose sum is σ = 41223168. Its totient is φ = 39387504.

The previous prime is 40302293. The next prime is 40302319. The reversal of 40302313 is 31320304.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40302313 - 2²¹ = 38205161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40302319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13656 + ... + 16342.

It is an arithmetic number, because the mean of its divisors is an integer number (5152896).

Almost surely, 2^40302313 is an apocalyptic number.

It is an amenable number.

40302313 is a deficient number, since it is larger than the sum of its proper divisors (920855).

40302313 is a wasteful number, since it uses less digits than its factorization.

40302313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3023.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 40302313 is about 6348.4102734464. The cubic root of 40302313 is about 342.8546077772.

Adding to 40302313 its reverse (31320304), we get a palindrome (71622617).

Subtracting from 40302313 its reverse (31320304), we obtain a square (8982009 = 2997²).

The spelling of 40302313 in words is "forty million, three hundred two thousand, three hundred thirteen".