1044343664 has 120 divisors (see below), whose sum is σ = 2668735440. Its totient is φ = 391329792.

The previous prime is 1044343661. The next prime is 1044343667. The reversal of 1044343664 is 4663434401.

It is an interprime number because it is at equal distance from previous prime (1044343661) and next prime (1044343667).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1044343661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 190952 + ... + 196344.

It is an arithmetic number, because the mean of its divisors is an integer number (22239462).

Almost surely, 2^1044343664 is an apocalyptic number.

1044343664 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 1044343664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1334367720).

1044343664 is an abundant number, since it is smaller than the sum of its proper divisors (1624391776).

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

1044343664 is a wasteful number, since it uses less digits than its factorization.

1044343664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5447 (or 5434 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 35.

The square root of 1044343664 is about 32316.3064721202. The cubic root of 1044343664 is about 1014.5679651594.

The spelling of 1044343664 in words is "one billion, forty-four million, three hundred forty-three thousand, six hundred sixty-four".