1000631344 has 20 divisors (see below), whose sum is σ = 1941967720. Its totient is φ = 499478400.

The previous prime is 1000631323. The next prime is 1000631347. The reversal of 1000631344 is 4431360001.

It is not an unprimeable number, because it can be changed into a prime (1000631347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42414 + ... + 61645.

It is an arithmetic number, because the mean of its divisors is an integer number (97098386).

Almost surely, 2^1000631344 is an apocalyptic number.

It is an amenable number.

1000631344 is a deficient number, since it is larger than the sum of its proper divisors (941336376).

1000631344 is a wasteful number, since it uses less digits than its factorization.

1000631344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104668 (or 104662 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 1000631344 is about 31632.7574517303. The cubic root of 1000631344 is about 1000.2104037272.

Adding to 1000631344 its reverse (4431360001), we get a palindrome (5431991345).

The spelling of 1000631344 in words is "one billion, six hundred thirty-one thousand, three hundred forty-four".