40673 has 4 divisors (see below), whose sum is σ = 41220. Its totient is φ = 40128.

The previous prime is 40639. The next prime is 40693. The reversal of 40673 is 37604.

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 21904 + 18769 = 148^2 + 137^2 .

It is a cyclic number.

It is not a de Polignac number, because 40673 - 2⁶ = 40609 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (40693) 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, 140 + ... + 317.

It is an arithmetic number, because the mean of its divisors is an integer number (10305).

2⁴⁰⁶⁷³ is an apocalyptic number.

It is an amenable number.

40673 is a deficient number, since it is larger than the sum of its proper divisors (547).

40673 is an equidigital number, since it uses as much as digits as its factorization.

40673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 40673 is about 201.6754819010. The cubic root of 40673 is about 34.3902554876.

The spelling of 40673 in words is "forty thousand, six hundred seventy-three".