400268 has 18 divisors (see below), whose sum is σ = 770868. Its totient is φ = 181720.

The previous prime is 400261. The next prime is 400277. The reversal of 400268 is 862004.

400268 is nontrivially palindromic in base 3.

It is not an unprimeable number, because it can be changed into a prime (400261) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 71 + ... + 897.

It is an arithmetic number, because the mean of its divisors is an integer number (42826).

2⁴⁰⁰²⁶⁸ is an apocalyptic number.

It is an amenable number.

400268 is a deficient number, since it is larger than the sum of its proper divisors (370600).

400268 is a wasteful number, since it uses less digits than its factorization.

400268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 853 (or 840 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 400268 is about 632.6673691601. The cubic root of 400268 is about 73.6970816398.

The spelling of 400268 in words is "four hundred thousand, two hundred sixty-eight".