402243404 has 6 divisors (see below), whose sum is σ = 703925964. Its totient is φ = 201121700.

The previous prime is 402243397. The next prime is 402243407. The reversal of 402243404 is 404342204.

It is a self number, because there is not a number n which added to its sum of digits gives 402243404.

It is not an unprimeable number, because it can be changed into a prime (402243407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50280422 + ... + 50280429.

It is an arithmetic number, because the mean of its divisors is an integer number (117320994).

Almost surely, 2^402243404 is an apocalyptic number.

It is an amenable number.

402243404 is a deficient number, since it is larger than the sum of its proper divisors (301682560).

402243404 is a wasteful number, since it uses less digits than its factorization.

402243404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100560855 (or 100560853 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 402243404 is about 20056.0066812913. The cubic root of 402243404 is about 738.1811943859.

Adding to 402243404 its reverse (404342204), we get a palindrome (806585608).

The spelling of 402243404 in words is "four hundred two million, two hundred forty-three thousand, four hundred four".