1305450536 has 64 divisors (see below), whose sum is σ = 2803928400. Its totient is φ = 564461568.

The previous prime is 1305450493. The next prime is 1305450551. The reversal of 1305450536 is 6350545031.

It can be written as a sum of positive squares in 8 ways, for example, as 615337636 + 690112900 = 24806^2 + 26270^2 .

It is a super-2 number, since 2×1305450536² = 3408402203885374592, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 410360 + ... + 413528.

Almost surely, 2^1305450536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1305450536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1401964200).

1305450536 is an abundant number, since it is smaller than the sum of its proper divisors (1498477864).

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

1305450536 is a wasteful number, since it uses less digits than its factorization.

1305450536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3438 (or 3434 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 32.

The square root of 1305450536 is about 36131.0190279765. The cubic root of 1305450536 is about 1092.9160578814.

Adding to 1305450536 its reverse (6350545031), we get a palindrome (7655995567).

The spelling of 1305450536 in words is "one billion, three hundred five million, four hundred fifty thousand, five hundred thirty-six".