400267 has 8 divisors (see below), whose sum is σ = 461312. Its totient is φ = 340200.

The previous prime is 400261. The next prime is 400277. The reversal of 400267 is 762004.

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

It is not a de Polignac number, because 400267 - 2¹¹ = 398219 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 1342 + ... + 1612.

It is an arithmetic number, because the mean of its divisors is an integer number (57664).

2⁴⁰⁰²⁶⁷ is an apocalyptic number.

400267 is a deficient number, since it is larger than the sum of its proper divisors (61045).

400267 is a wasteful number, since it uses less digits than its factorization.

400267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 400267 is about 632.6665788549. Note that the first 3 decimals coincide. The cubic root of 400267 is about 73.6970202667.

The spelling of 400267 in words is "four hundred thousand, two hundred sixty-seven".