400846 has 16 divisors (see below), whose sum is σ = 633600. Its totient is φ = 190008.

The previous prime is 400837. The next prime is 400849. The reversal of 400846 is 648004.

400846 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400849) by changing a digit.

400846 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 in 7 ways as a sum of consecutive naturals, for example, 5035 + ... + 5113.

It is an arithmetic number, because the mean of its divisors is an integer number (39600).

2⁴⁰⁰⁸⁴⁶ is an apocalyptic number.

400846 is a deficient number, since it is larger than the sum of its proper divisors (232754).

400846 is a wasteful number, since it uses less digits than its factorization.

400846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 400846 is about 633.1240004928. The cubic root of 400846 is about 73.7325382388.

The spelling of 400846 in words is "four hundred thousand, eight hundred forty-six".