1305532000 has 192 divisors, whose sum is σ = 3455996544. Its totient is φ = 482918400.

The previous prime is 1305531991. The next prime is 1305532001. The reversal of 1305532000 is 2355031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1305532001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4963869 + ... + 4964131.

It is an arithmetic number, because the mean of its divisors is an integer number (17999982).

Almost surely, 2^1305532000 is an apocalyptic number.

1305532000 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 1305532000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1727998272).

1305532000 is an abundant number, since it is smaller than the sum of its proper divisors (2150464544).

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

1305532000 is a wasteful number, since it uses less digits than its factorization.

1305532000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378 (or 360 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 1305532000 is about 36132.1463519675. The cubic root of 1305532000 is about 1092.9387911471.

Adding to 1305532000 its reverse (2355031), we get a palindrome (1307887031).

The spelling of 1305532000 in words is "one billion, three hundred five million, five hundred thirty-two thousand".