1304097760 has 144 divisors (see below), whose sum is σ = 3607662240. Its totient is φ = 444165120.

The previous prime is 1304097749. The next prime is 1304097763. The reversal of 1304097760 is 677904031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304097763) 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, 1418581 + ... + 1419499.

It is an arithmetic number, because the mean of its divisors is an integer number (25053210).

Almost surely, 2^1304097760 is an apocalyptic number.

1304097760 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 1304097760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1803831120).

1304097760 is an abundant number, since it is smaller than the sum of its proper divisors (2303564480).

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

1304097760 is a wasteful number, since it uses less digits than its factorization.

1304097760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129 (or 1114 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 1304097760 is about 36112.2937515744. The cubic root of 1304097760 is about 1092.5384151810.

The spelling of 1304097760 in words is "one billion, three hundred four million, ninety-seven thousand, seven hundred sixty".