402267 has 4 divisors (see below), whose sum is σ = 536360. Its totient is φ = 268176.

The previous prime is 402263. The next prime is 402277. The reversal of 402267 is 762204.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 402267 - 2² = 402263 is a prime.

It is a D-number.

It is a Duffinian number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (402263) 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, 67042 + ... + 67047.

It is an arithmetic number, because the mean of its divisors is an integer number (134090).

2⁴⁰²²⁶⁷ is an apocalyptic number.

402267 is a deficient number, since it is larger than the sum of its proper divisors (134093).

402267 is a wasteful number, since it uses less digits than its factorization.

402267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134092.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 402267 is about 634.2452207151. The cubic root of 402267 is about 73.8195628252.

The spelling of 402267 in words is "four hundred two thousand, two hundred sixty-seven".