40586805 has 64 divisors (see below), whose sum is σ = 85363200. Its totient is φ = 17902080.

The previous prime is 40586779. The next prime is 40586809. The reversal of 40586805 is 50868504.

It is a happy number.

It is not a de Polignac number, because 40586805 - 2⁵ = 40586773 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40586805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40586809) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 26665 + ... + 28145.

It is an arithmetic number, because the mean of its divisors is an integer number (1333800).

Almost surely, 2^40586805 is an apocalyptic number.

40586805 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40586805 is an abundant number, since it is smaller than the sum of its proper divisors (44776395).

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

40586805 is a wasteful number, since it uses less digits than its factorization.

40586805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1531 (or 1525 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 40586805 is about 6370.7774250871. Note that the first 3 decimals coincide. The cubic root of 40586805 is about 343.6594481045.

The spelling of 40586805 in words is "forty million, five hundred eighty-six thousand, eight hundred five".