40928 has 12 divisors (see below), whose sum is σ = 80640. Its totient is φ = 20448.

The previous prime is 40927. The next prime is 40933. The reversal of 40928 is 82904.

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 40928.

It is not an unprimeable number, because it can be changed into a prime (40927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 608 + ... + 671.

It is an arithmetic number, because the mean of its divisors is an integer number (6720).

2⁴⁰⁹²⁸ is an apocalyptic number.

It is an amenable number.

40928 is a deficient number, since it is larger than the sum of its proper divisors (39712).

40928 is a wasteful number, since it uses less digits than its factorization.

40928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1289 (or 1281 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 40928 is about 202.3066978624. The cubic root of 40928 is about 34.4619758906.

The spelling of 40928 in words is "forty thousand, nine hundred twenty-eight".