40913586 has 80 divisors (see below), whose sum is σ = 106054080. Its totient is φ = 11547360.

The previous prime is 40913581. The next prime is 40913599. The reversal of 40913586 is 68531904.

It is a self number, because there is not a number n which added to its sum of digits gives 40913586.

It is not an unprimeable number, because it can be changed into a prime (40913581) 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 39 ways as a sum of consecutive naturals, for example, 123441 + ... + 123771.

It is an arithmetic number, because the mean of its divisors is an integer number (1325676).

Almost surely, 2^40913586 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40913586, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53027040).

40913586 is an abundant number, since it is smaller than the sum of its proper divisors (65140494).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40913586 is a wasteful number, since it uses less digits than its factorization.

40913586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461 (or 452 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 40913586 is about 6396.3728784367. The cubic root of 40913586 is about 344.5792981580.

The spelling of 40913586 in words is "forty million, nine hundred thirteen thousand, five hundred eighty-six".