402244 has 12 divisors (see below), whose sum is σ = 708624. Its totient is φ = 199784.

The previous prime is 402239. The next prime is 402253. The reversal of 402244 is 442204.

It is a plaindrome in base 13.

It is an unprimeable 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 3 ways as a sum of consecutive naturals, for example, 687 + ... + 1129.

It is an arithmetic number, because the mean of its divisors is an integer number (59052).

2⁴⁰²²⁴⁴ is an apocalyptic number.

It is an amenable number.

402244 is a deficient number, since it is larger than the sum of its proper divisors (306380).

402244 is a wasteful number, since it uses less digits than its factorization.

402244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674 (or 672 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 402244 is about 634.2270886678. The cubic root of 402244 is about 73.8181558971.

Adding to 402244 its reverse (442204), we get a palindrome (844448).

It can be divided in two parts, 402 and 244, that added together give a palindrome (646).

The spelling of 402244 in words is "four hundred two thousand, two hundred forty-four", and thus it is an iban number.