40013303 has 4 divisors (see below), whose sum is σ = 43650888. Its totient is φ = 36375720.

The previous prime is 40013299. The next prime is 40013327. The reversal of 40013303 is 30331004.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40013303 - 2² = 40013299 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 (40013333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1818776 + ... + 1818797.

It is an arithmetic number, because the mean of its divisors is an integer number (10912722).

Almost surely, 2^40013303 is an apocalyptic number.

40013303 is a deficient number, since it is larger than the sum of its proper divisors (3637585).

40013303 is a wasteful number, since it uses less digits than its factorization.

40013303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3637584.

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 40013303 is about 6325.6069274023. The cubic root of 40013303 is about 342.0330981498.

Adding to 40013303 its reverse (30331004), we get a palindrome (70344307).

The spelling of 40013303 in words is "forty million, thirteen thousand, three hundred three".