1304525000 has 48 divisors (see below), whose sum is σ = 3057343380. Its totient is φ = 521800000.

The previous prime is 1304524979. The next prime is 1304525051. The reversal of 1304525000 is 5254031.

It can be written as a sum of positive squares in 6 ways, for example, as 402483844 + 902041156 = 20062^2 + 30034^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 1091 + ... + 51090.

Almost surely, 2^1304525000 is an apocalyptic number.

1304525000 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 1304525000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1528671690).

1304525000 is an abundant number, since it is smaller than the sum of its proper divisors (1752818380).

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

1304525000 is an frugal number, since it uses more digits than its factorization.

1304525000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52212 (or 52188 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 1304525000 is about 36118.2087041979. The cubic root of 1304525000 is about 1092.6577122568.

Adding to 1304525000 its reverse (5254031), we get a palindrome (1309779031).

The spelling of 1304525000 in words is "one billion, three hundred four million, five hundred twenty-five thousand".