400908 has 12 divisors (see below), whose sum is σ = 935480. Its totient is φ = 133632.

The previous prime is 400903. The next prime is 400927. The reversal of 400908 is 809004.

400908 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400903) by changing a digit.

400908 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16693 + ... + 16716.

2⁴⁰⁰⁹⁰⁸ is an apocalyptic number.

It is an amenable number.

400908 is an abundant number, since it is smaller than the sum of its proper divisors (534572).

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

400908 is a wasteful number, since it uses less digits than its factorization.

400908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33416 (or 33414 counting only the distinct ones).

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

The square root of 400908 is about 633.1729621517. The cubic root of 400908 is about 73.7363395172.

The spelling of 400908 in words is "four hundred thousand, nine hundred eight".