402867 has 16 divisors (see below), whose sum is σ = 612480. Its totient is φ = 261576.

The previous prime is 402863. The next prime is 402869. The reversal of 402867 is 768204.

It is not a de Polignac number, because 402867 - 2² = 402863 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a plaindrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 402867.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 402867.

It is not an unprimeable number, because it can be changed into a prime (402863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 988 + ... + 1334.

It is an arithmetic number, because the mean of its divisors is an integer number (38280).

2⁴⁰²⁸⁶⁷ is an apocalyptic number.

402867 is a deficient number, since it is larger than the sum of its proper divisors (209613).

402867 is a wasteful number, since it uses less digits than its factorization.

402867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399 (or 393 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 402867 is about 634.7180476401. The cubic root of 402867 is about 73.8562463670.

It can be divided in two parts, 4028 and 67, that added together give a triangular number (4095 = T₉₀).

The spelling of 402867 in words is "four hundred two thousand, eight hundred sixty-seven".