402004244 has 6 divisors (see below), whose sum is σ = 703507434. Its totient is φ = 201002120.

The previous prime is 402004217. The next prime is 402004247. The reversal of 402004244 is 442400204.

It can be written as a sum of positive squares in only one way, i.e., 344547844 + 57456400 = 18562^2 + 7580^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402004247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50250527 + ... + 50250534.

It is an arithmetic number, because the mean of its divisors is an integer number (117251239).

Almost surely, 2^402004244 is an apocalyptic number.

It is an amenable number.

402004244 is a deficient number, since it is larger than the sum of its proper divisors (301503190).

402004244 is a wasteful number, since it uses less digits than its factorization.

402004244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100501065 (or 100501063 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 402004244 is about 20050.0434912247. The cubic root of 402004244 is about 738.0348663889.

Adding to 402004244 its reverse (442400204), we get a palindrome (844404448).

It can be divided in two parts, 40200 and 4244, that added together give a palindrome (44444).

The spelling of 402004244 in words is "four hundred two million, four thousand, two hundred forty-four".