402248 has 32 divisors (see below), whose sum is σ = 941760. Its totient is φ = 156480.

The previous prime is 402239. The next prime is 402253. The reversal of 402248 is 842204.

It is a plaindrome in base 13.

It is a zygodrome in base 13.

It is an unprimeable number.

402248 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290 + ... + 942.

It is an arithmetic number, because the mean of its divisors is an integer number (29430).

2⁴⁰²²⁴⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (470880).

402248 is an abundant number, since it is smaller than the sum of its proper divisors (539512).

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

402248 is a wasteful number, since it uses less digits than its factorization.

402248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677 (or 673 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 402248 is about 634.2302421046. The cubic root of 402248 is about 73.8184005841.

The spelling of 402248 in words is "four hundred two thousand, two hundred forty-eight".