1000631000440 has 32 divisors (see below), whose sum is σ = 2251624916880. Its totient is φ = 400215926272.

The previous prime is 1000631000429. The next prime is 1000631000527. The reversal of 1000631000440 is 440001360001.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 693217 + ... + 1575376.

Almost surely, 2^{1000631000440} is an apocalyptic number.

1000631000440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000631000440 is an abundant number, since it is smaller than the sum of its proper divisors (1250993916440).

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

1000631000440 is a wasteful number, since it uses less digits than its factorization.

1000631000440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2279631 (or 2279627 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1000631000440 its reverse (440001360001), we get a palindrome (1440632360441).

The spelling of 1000631000440 in words is "one trillion, six hundred thirty-one million, four hundred forty", and thus it is an aban number.