40966637 has 4 divisors (see below), whose sum is σ = 41023260. Its totient is φ = 40910016.

The previous prime is 40966633. The next prime is 40966643. The reversal of 40966637 is 73666904.

It is a happy number.

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 38576521 + 2390116 = 6211^2 + 1546^2 .

It is a cyclic number.

It is not a de Polignac number, because 40966637 - 2² = 40966633 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40966594 and 40966603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40966633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27212 + ... + 28677.

It is an arithmetic number, because the mean of its divisors is an integer number (10255815).

Almost surely, 2^40966637 is an apocalyptic number.

It is an amenable number.

40966637 is a deficient number, since it is larger than the sum of its proper divisors (56623).

40966637 is an equidigital number, since it uses as much as digits as its factorization.

40966637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56622.

The product of its (nonzero) digits is 163296, while the sum is 41.

The square root of 40966637 is about 6400.5184946221. The cubic root of 40966637 is about 344.7281678671.

The spelling of 40966637 in words is "forty million, nine hundred sixty-six thousand, six hundred thirty-seven".