40422685 has 16 divisors (see below), whose sum is σ = 52752816. Its totient is φ = 29611008.

The previous prime is 40422677. The next prime is 40422691. The reversal of 40422685 is 58622404.

40422685 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 1159929 + 39262756 = 1077^2 + 6266^2 .

It is not a de Polignac number, because 40422685 - 2³ = 40422677 is a prime.

It is a super-3 number, since 3×40422685³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 3282 + ... + 9571.

It is an arithmetic number, because the mean of its divisors is an integer number (3297051).

Almost surely, 2^40422685 is an apocalyptic number.

It is an amenable number.

40422685 is a deficient number, since it is larger than the sum of its proper divisors (12330131).

40422685 is a wasteful number, since it uses less digits than its factorization.

40422685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12912.

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 40422685 is about 6357.8836887757. The cubic root of 40422685 is about 343.1956061991.

The spelling of 40422685 in words is "forty million, four hundred twenty-two thousand, six hundred eighty-five".