402003344 has 20 divisors (see below), whose sum is σ = 792084720. Its totient is φ = 197594400.

The previous prime is 402003337. The next prime is 402003379. The reversal of 402003344 is 443300204.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211982 + ... + 213869.

It is an arithmetic number, because the mean of its divisors is an integer number (39604236).

Almost surely, 2^402003344 is an apocalyptic number.

It is an amenable number.

402003344 is a deficient number, since it is larger than the sum of its proper divisors (390081376).

402003344 is a wasteful number, since it uses less digits than its factorization.

402003344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425918 (or 425912 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 402003344 is about 20050.0210473705. The cubic root of 402003344 is about 738.0343156220.

Adding to 402003344 its reverse (443300204), we get a palindrome (845303548).

The spelling of 402003344 in words is "four hundred two million, three thousand, three hundred forty-four".