40182913 has 8 divisors (see below), whose sum is σ = 41849856. Its totient is φ = 38539200.

The previous prime is 40182907. The next prime is 40182931. The reversal of 40182913 is 31928104.

It is a happy number.

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

It is not a de Polignac number, because 40182913 - 2⁵ = 40182881 is a prime.

It is a super-2 number, since 2×40182913² = 3229332994331138, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40182943) 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, 2233 + ... + 9238.

It is an arithmetic number, because the mean of its divisors is an integer number (5231232).

Almost surely, 2^40182913 is an apocalyptic number.

It is an amenable number.

40182913 is a deficient number, since it is larger than the sum of its proper divisors (1666943).

40182913 is a wasteful number, since it uses less digits than its factorization.

40182913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11615.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 40182913 is about 6338.9993689856. Note that the first 3 decimals coincide. The cubic root of 40182913 is about 342.5156914686.

The spelling of 40182913 in words is "forty million, one hundred eighty-two thousand, nine hundred thirteen".