40205814 has 16 divisors (see below), whose sum is σ = 87721920. Its totient is φ = 12183560.

The previous prime is 40205813. The next prime is 40205819. The reversal of 40205814 is 41850204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40205813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 304524 + ... + 304655.

It is an arithmetic number, because the mean of its divisors is an integer number (5482620).

Almost surely, 2^40205814 is an apocalyptic number.

40205814 is an abundant number, since it is smaller than the sum of its proper divisors (47516106).

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

40205814 is a wasteful number, since it uses less digits than its factorization.

40205814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609195.

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 40205814 is about 6340.8054693390. The cubic root of 40205814 is about 342.5807478287.

The spelling of 40205814 in words is "forty million, two hundred five thousand, eight hundred fourteen".