40969 has 4 divisors (see below), whose sum is σ = 41796. Its totient is φ = 40144.

The previous prime is 40961. The next prime is 40973. The reversal of 40969 is 96904.

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 14400 + 26569 = 120^2 + 163^2 .

It is a cyclic number.

It is not a de Polignac number, because 40969 - 2³ = 40961 is a prime.

It is a super-2 number, since 2×40969² = 3356917922, which contains 22 as substring.

It is a Duffinian 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 in 3 ways as a sum of consecutive naturals, for example, 334 + ... + 439.

It is an arithmetic number, because the mean of its divisors is an integer number (10449).

2⁴⁰⁹⁶⁹ is an apocalyptic number.

It is an amenable number.

40969 is a deficient number, since it is larger than the sum of its proper divisors (827).

40969 is an equidigital number, since it uses as much as digits as its factorization.

40969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 40969 is about 202.4080037943. The cubic root of 40969 is about 34.4734795838.

It can be divided in two parts, 4096 and 9, that multiplied together give a square (36864 = 192²).

The spelling of 40969 in words is "forty thousand, nine hundred sixty-nine".