40186013 has 8 divisors (see below), whose sum is σ = 47408640. Its totient is φ = 33333840.

The previous prime is 40186001. The next prime is 40186019. The reversal of 40186013 is 31068104.

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 40186013 - 2¹² = 40181917 is a prime.

It is a super-2 number, since 2×40186013² = 3229831281672338, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 40186013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40186019) 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, 92378 + ... + 92811.

It is an arithmetic number, because the mean of its divisors is an integer number (5926080).

Almost surely, 2^40186013 is an apocalyptic number.

It is an amenable number.

40186013 is a deficient number, since it is larger than the sum of its proper divisors (7222627).

40186013 is a wasteful number, since it uses less digits than its factorization.

40186013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185227.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 40186013 is about 6339.2438823569. The cubic root of 40186013 is about 342.5244992865.

The spelling of 40186013 in words is "forty million, one hundred eighty-six thousand, thirteen".