1304405000 has 80 divisors (see below), whose sum is σ = 3127811280. Its totient is φ = 509544000.

The previous prime is 1304404999. The next prime is 1304405017. The reversal of 1304405000 is 5044031.

It is a super-3 number, since 3×1304405000³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1304405000.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 211967 + ... + 218033.

It is an arithmetic number, because the mean of its divisors is an integer number (39097641).

Almost surely, 2^1304405000 is an apocalyptic number.

1304405000 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 1304405000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1563905640).

1304405000 is an abundant number, since it is smaller than the sum of its proper divisors (1823406280).

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

1304405000 is an equidigital number, since it uses as much as digits as its factorization.

1304405000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6136 (or 6117 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 1304405000 is about 36116.5474540411. The cubic root of 1304405000 is about 1092.6242076105.

Adding to 1304405000 its reverse (5044031), we get a palindrome (1309449031).

The spelling of 1304405000 in words is "one billion, three hundred four million, four hundred five thousand".