40646941 has 4 divisors (see below), whose sum is σ = 40943772. Its totient is φ = 40350112.

The previous prime is 40646939. The next prime is 40646959. The reversal of 40646941 is 14964604.

40646941 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9174841 + 31472100 = 3029^2 + 5610^2 .

It is a cyclic number.

It is not a de Polignac number, because 40646941 - 2¹ = 40646939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40646897 and 40646906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40646971) 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 3 ways as a sum of consecutive naturals, for example, 148210 + ... + 148483.

It is an arithmetic number, because the mean of its divisors is an integer number (10235943).

Almost surely, 2^40646941 is an apocalyptic number.

It is an amenable number.

40646941 is a deficient number, since it is larger than the sum of its proper divisors (296831).

40646941 is a wasteful number, since it uses less digits than its factorization.

40646941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296830.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 40646941 is about 6375.4953533039. The cubic root of 40646941 is about 343.8290936016.

The spelling of 40646941 in words is "forty million, six hundred forty-six thousand, nine hundred forty-one".