40574 has 4 divisors (see below), whose sum is σ = 60864. Its totient is φ = 20286.

The previous prime is 40559. The next prime is 40577. The reversal of 40574 is 47504.

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

It is a congruent number.

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

40574 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 as a sum of consecutive naturals, namely, 10142 + ... + 10145.

It is an arithmetic number, because the mean of its divisors is an integer number (15216).

2⁴⁰⁵⁷⁴ is an apocalyptic number.

40574 is a deficient number, since it is larger than the sum of its proper divisors (20290).

40574 is a wasteful number, since it uses less digits than its factorization.

40574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20289.

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 40574 is about 201.4298885469. The cubic root of 40574 is about 34.3623303171.

The spelling of 40574 in words is "forty thousand, five hundred seventy-four".