402244404 has 12 divisors (see below), whose sum is σ = 938570304. Its totient is φ = 134081464.

The previous prime is 402244397. The next prime is 402244411. The reversal of 402244404 is 404442204.

It is an interprime number because it is at equal distance from previous prime (402244397) and next prime (402244411).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16760172 + ... + 16760195.

It is an arithmetic number, because the mean of its divisors is an integer number (78214192).

Almost surely, 2^402244404 is an apocalyptic number.

It is an amenable number.

402244404 is an abundant number, since it is smaller than the sum of its proper divisors (536325900).

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

402244404 is a wasteful number, since it uses less digits than its factorization.

402244404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33520374 (or 33520372 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

The square root of 402244404 is about 20056.0316114629. The cubic root of 402244404 is about 738.1818061055.

Adding to 402244404 its reverse (404442204), we get a palindrome (806686608).

The spelling of 402244404 in words is "four hundred two million, two hundred forty-four thousand, four hundred four".