40013319 has 4 divisors (see below), whose sum is σ = 53351096. Its totient is φ = 26675544.

The previous prime is 40013299. The next prime is 40013327. The reversal of 40013319 is 91331004.

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

It is not a de Polignac number, because 40013319 - 2⁵ = 40013287 is a prime.

It is a super-2 number, since 2×40013319² = 3202131394791522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40013295 and 40013304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40013329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6668884 + ... + 6668889.

It is an arithmetic number, because the mean of its divisors is an integer number (13337774).

Almost surely, 2^40013319 is an apocalyptic number.

40013319 is a deficient number, since it is larger than the sum of its proper divisors (13337777).

40013319 is a wasteful number, since it uses less digits than its factorization.

40013319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13337776.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 40013319 is about 6325.6081921030. The cubic root of 40013319 is about 342.0331437391.

The spelling of 40013319 in words is "forty million, thirteen thousand, three hundred nineteen".