40965 has 8 divisors (see below), whose sum is σ = 65568. Its totient is φ = 21840.

The previous prime is 40961. The next prime is 40973. The reversal of 40965 is 56904.

40965 is nontrivially palindromic in base 2 and base 14.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40965 - 2² = 40961 is a prime.

It is a Curzon number.

It is a nialpdrome in base 15.

It is a zygodrome in base 4.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 40965.

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 in 7 ways as a sum of consecutive naturals, for example, 1351 + ... + 1380.

It is an arithmetic number, because the mean of its divisors is an integer number (8196).

2⁴⁰⁹⁶⁵ is an apocalyptic number.

It is an amenable number.

40965 is a deficient number, since it is larger than the sum of its proper divisors (24603).

40965 is a wasteful number, since it uses less digits than its factorization.

40965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2739.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 40965 is about 202.3981225209. The cubic root of 40965 is about 34.4723576102.

It can be divided in two parts, 409 and 65, that added together give a palindrome (474).

The spelling of 40965 in words is "forty thousand, nine hundred sixty-five".