1000744444 has 72 divisors (see below), whose sum is σ = 2155634208. Its totient is φ = 404490240.

The previous prime is 1000744417. The next prime is 1000744447. The reversal of 1000744444 is 4444470001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000744447) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 327564 + ... + 330604.

It is an arithmetic number, because the mean of its divisors is an integer number (29939364).

Almost surely, 2^1000744444 is an apocalyptic number.

1000744444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1000744444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1077817104).

1000744444 is an abundant number, since it is smaller than the sum of its proper divisors (1154889764).

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

1000744444 is a wasteful number, since it uses less digits than its factorization.

1000744444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3155 (or 3146 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 28.

The square root of 1000744444 is about 31634.5451049956. The cubic root of 1000744444 is about 1000.2480864480.

The spelling of 1000744444 in words is "one billion, seven hundred forty-four thousand, four hundred forty-four".