400834 has 8 divisors (see below), whose sum is σ = 687168. Its totient is φ = 171780.

The previous prime is 400823. The next prime is 400837. The reversal of 400834 is 438004.

400834 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (400837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14302 + ... + 14329.

It is an arithmetic number, because the mean of its divisors is an integer number (85896).

2⁴⁰⁰⁸³⁴ is an apocalyptic number.

400834 is a deficient number, since it is larger than the sum of its proper divisors (286334).

400834 is a wasteful number, since it uses less digits than its factorization.

400834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28640.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 400834 is about 633.1145236053. The cubic root of 400834 is about 73.7318024622.

Adding to 400834 its reverse (438004), we get a palindrome (838838).

The spelling of 400834 in words is "four hundred thousand, eight hundred thirty-four".