40806786 has 32 divisors (see below), whose sum is σ = 83119680. Its totient is φ = 13353984.

The previous prime is 40806719. The next prime is 40806791. The reversal of 40806786 is 68760804.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94026 + ... + 94458.

It is an arithmetic number, because the mean of its divisors is an integer number (2597490).

Almost surely, 2^40806786 is an apocalyptic number.

40806786 is an abundant number, since it is smaller than the sum of its proper divisors (42312894).

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

40806786 is a wasteful number, since it uses less digits than its factorization.

40806786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690.

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 40806786 is about 6388.0189417377. The cubic root of 40806786 is about 344.2792092735.

The spelling of 40806786 in words is "forty million, eight hundred six thousand, seven hundred eighty-six".