1304410240 has 128 divisors (see below), whose sum is σ = 3577115520. Its totient is φ = 445562880.

The previous prime is 1304410207. The next prime is 1304410241. The reversal of 1304410240 is 420144031.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (1304410241) 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, 2199384 + ... + 2199976.

It is an arithmetic number, because the mean of its divisors is an integer number (27946215).

Almost surely, 2^1304410240 is an apocalyptic number.

1304410240 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 1304410240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1788557760).

1304410240 is an abundant number, since it is smaller than the sum of its proper divisors (2272705280).

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

1304410240 is an equidigital number, since it uses as much as digits as its factorization.

1304410240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110 (or 1098 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1304410240 is about 36116.6199968934. The cubic root of 1304410240 is about 1092.6256706896.

Adding to 1304410240 its reverse (420144031), we get a palindrome (1724554271).

The spelling of 1304410240 in words is "one billion, three hundred four million, four hundred ten thousand, two hundred forty".