40313133 has 40 divisors (see below), whose sum is σ = 70276800. Its totient is φ = 23020200.

The previous prime is 40313123. The next prime is 40313167. The reversal of 40313133 is 33131304.

It is not a de Polignac number, because 40313133 - 2⁵ = 40313101 is a prime.

It is a Curzon number.

It is a nialpdrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40313123) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 27058 + ... + 28508.

It is an arithmetic number, because the mean of its divisors is an integer number (1756920).

Almost surely, 2^40313133 is an apocalyptic number.

It is an amenable number.

40313133 is a deficient number, since it is larger than the sum of its proper divisors (29963667).

40313133 is an equidigital number, since it uses as much as digits as its factorization.

40313133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1484 (or 1461 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 40313133 is about 6349.2623981058. The cubic root of 40313133 is about 342.8852871986.

Adding to 40313133 its reverse (33131304), we get a palindrome (73444437).

The spelling of 40313133 in words is "forty million, three hundred thirteen thousand, one hundred thirty-three".