40427636 has 6 divisors (see below), whose sum is σ = 70748370. Its totient is φ = 20213816.

The previous prime is 40427623. The next prime is 40427641. The reversal of 40427636 is 63672404.

It can be written as a sum of positive squares in only one way, i.e., 40398736 + 28900 = 6356^2 + 170^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5053451 + ... + 5053458.

It is an arithmetic number, because the mean of its divisors is an integer number (11791395).

Almost surely, 2^40427636 is an apocalyptic number.

It is an amenable number.

40427636 is a deficient number, since it is larger than the sum of its proper divisors (30320734).

40427636 is a wasteful number, since it uses less digits than its factorization.

40427636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10106913 (or 10106911 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 40427636 is about 6358.2730359745. The cubic root of 40427636 is about 343.2096172433.

The spelling of 40427636 in words is "forty million, four hundred twenty-seven thousand, six hundred thirty-six".