402276 has 24 divisors (see below), whose sum is σ = 1072960. Its totient is φ = 114912.

The previous prime is 402263. The next prime is 402277. The reversal of 402276 is 672204.

It is a happy number.

402276 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a plaindrome in base 13.

It is a zygodrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (402277) by changing a digit.

402276 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2311 + ... + 2478.

2⁴⁰²²⁷⁶ is an apocalyptic number.

It is an amenable number.

402276 is an abundant number, since it is smaller than the sum of its proper divisors (670684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

402276 is a wasteful number, since it uses less digits than its factorization.

402276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4803 (or 4801 counting only the distinct ones).

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

The square root of 402276 is about 634.2523157230. The cubic root of 402276 is about 73.8201133478.

The spelling of 402276 in words is "four hundred two thousand, two hundred seventy-six".