402243344 has 20 divisors (see below), whose sum is σ = 790980624. Its totient is φ = 198119328.

The previous prime is 402243323. The next prime is 402243379. The reversal of 402243344 is 443342204.

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, 186542 + ... + 188685.

Almost surely, 2^402243344 is an apocalyptic number.

It is an amenable number.

402243344 is a deficient number, since it is larger than the sum of its proper divisors (388737280).

402243344 is a wasteful number, since it uses less digits than its factorization.

402243344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375302 (or 375296 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 26.

The square root of 402243344 is about 20056.0051854800. The cubic root of 402243344 is about 738.1811576827.

Adding to 402243344 its reverse (443342204), we get a palindrome (845585548).

The spelling of 402243344 in words is "four hundred two million, two hundred forty-three thousand, three hundred forty-four".