40573 has 4 divisors (see below), whose sum is σ = 43708. Its totient is φ = 37440.

The previous prime is 40559. The next prime is 40577. The reversal of 40573 is 37504.

40573 is nontrivially palindromic in base 14.

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 1764 + 38809 = 42^2 + 197^2 .

It is not a de Polignac number, because 40573 - 2¹³ = 32381 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40573.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1548 + ... + 1573.

It is an arithmetic number, because the mean of its divisors is an integer number (10927).

2⁴⁰⁵⁷³ is an apocalyptic number.

It is an amenable number.

40573 is a deficient number, since it is larger than the sum of its proper divisors (3135).

40573 is a wasteful number, since it uses less digits than its factorization.

40573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3134.

The product of its (nonzero) digits is 420, while the sum is 19.

The square root of 40573 is about 201.4274062783. The cubic root of 40573 is about 34.3620480131.

The spelling of 40573 in words is "forty thousand, five hundred seventy-three".