40966 has 4 divisors (see below), whose sum is σ = 61452. Its totient is φ = 20482.

The previous prime is 40961. The next prime is 40973. The reversal of 40966 is 66904.

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

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 40966.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10240 + ... + 10243.

It is an arithmetic number, because the mean of its divisors is an integer number (15363).

2⁴⁰⁹⁶⁶ is an apocalyptic number.

40966 is a deficient number, since it is larger than the sum of its proper divisors (20486).

40966 is a wasteful number, since it uses less digits than its factorization.

40966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20485.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 40966 is about 202.4005928845. The cubic root of 40966 is about 34.4726381104.

The spelling of 40966 in words is "forty thousand, nine hundred sixty-six".