40908 has 24 divisors (see below), whose sum is σ = 109312. Its totient is φ = 11664.

The previous prime is 40903. The next prime is 40927. The reversal of 40908 is 80904.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (40903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160 + ... + 327.

2⁴⁰⁹⁰⁸ is an apocalyptic number.

It is an amenable number.

40908 is an abundant number, since it is smaller than the sum of its proper divisors (68404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54656).

40908 is a wasteful number, since it uses less digits than its factorization.

40908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501 (or 499 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 40908 is about 202.2572619215. The cubic root of 40908 is about 34.4563615449.

The spelling of 40908 in words is "forty thousand, nine hundred eight".