1000998944 has 24 divisors (see below), whose sum is σ = 2149873488. Its totient is φ = 454999360.

The previous prime is 1000998941. The next prime is 1000998953. The reversal of 1000998944 is 4498990001.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 1000998895 and 1000998904.

It is not an unprimeable number, because it can be changed into a prime (1000998941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1421522 + ... + 1422225.

It is an arithmetic number, because the mean of its divisors is an integer number (89578062).

Almost surely, 2^1000998944 is an apocalyptic number.

It is an amenable number.

1000998944 is an abundant number, since it is smaller than the sum of its proper divisors (1148874544).

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

1000998944 is a wasteful number, since it uses less digits than its factorization.

1000998944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2843768 (or 2843760 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 1000998944 is about 31638.5673506245. The cubic root of 1000998944 is about 1000.3328705183.

The spelling of 1000998944 in words is "one billion, nine hundred ninety-eight thousand, nine hundred forty-four".