1044672880 has 80 divisors (see below), whose sum is σ = 2577692160. Its totient is φ = 392885504.

The previous prime is 1044672859. The next prime is 1044672883. The reversal of 1044672880 is 882764401.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1044672883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103749 + ... + 113371.

It is an arithmetic number, because the mean of its divisors is an integer number (32221152).

Almost surely, 2^1044672880 is an apocalyptic number.

1044672880 is a gapful number since it is divisible by the number (10) 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 1044672880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1288846080).

1044672880 is an abundant number, since it is smaller than the sum of its proper divisors (1533019280).

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

1044672880 is a wasteful number, since it uses less digits than its factorization.

1044672880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9718 (or 9712 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 40.

The square root of 1044672880 is about 32321.3997221655. The cubic root of 1044672880 is about 1014.6745638226.

The spelling of 1044672880 in words is "one billion, forty-four million, six hundred seventy-two thousand, eight hundred eighty".