40853681 has 16 divisors (see below), whose sum is σ = 46949760. Its totient is φ = 35185920.

The previous prime is 40853677. The next prime is 40853689. The reversal of 40853681 is 18635804.

40853681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40853681 - 2² = 40853677 is a prime.

It is a super-2 number, since 2×40853681² = 3338046502499522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40853689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27875 + ... + 29303.

It is an arithmetic number, because the mean of its divisors is an integer number (2934360).

Almost surely, 2^40853681 is an apocalyptic number.

It is an amenable number.

40853681 is a deficient number, since it is larger than the sum of its proper divisors (6096079).

40853681 is a wasteful number, since it uses less digits than its factorization.

40853681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1576.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 40853681 is about 6391.6884310799. The cubic root of 40853681 is about 344.4110402299.

The spelling of 40853681 in words is "forty million, eight hundred fifty-three thousand, six hundred eighty-one".