1044761680 has 60 divisors (see below), whose sum is σ = 2450971476. Its totient is φ = 414169600.

The previous prime is 1044761677. The next prime is 1044761717. The reversal of 1044761680 is 861674401.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 121088016 + 923673664 = 11004^2 + 30392^2 .

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1372500 + ... + 1373260.

Almost surely, 2^1044761680 is an apocalyptic number.

1044761680 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 1044761680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1225485738).

1044761680 is an abundant number, since it is smaller than the sum of its proper divisors (1406209796).

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

1044761680 is an equidigital number, since it uses as much as digits as its factorization.

1044761680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036 (or 899 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 1044761680 is about 32322.7733958582. The cubic root of 1044761680 is about 1014.7033130289.

It can be divided in two parts, 10447 and 61680, that added together give a palindrome (72127).

The spelling of 1044761680 in words is "one billion, forty-four million, seven hundred sixty-one thousand, six hundred eighty".