1306542260 has 48 divisors (see below), whose sum is σ = 2772478800. Its totient is φ = 517171200.

The previous prime is 1306542253. The next prime is 1306542269. The reversal of 1306542260 is 622456031.

It can be written as a sum of positive squares in 8 ways, for example, as 648517156 + 658025104 = 25466^2 + 25652^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1306542269) 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, 1003610 + ... + 1004910.

It is an arithmetic number, because the mean of its divisors is an integer number (57759975).

Almost surely, 2^1306542260 is an apocalyptic number.

1306542260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1306542260 is an abundant number, since it is smaller than the sum of its proper divisors (1465936540).

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

1306542260 is a wasteful number, since it uses less digits than its factorization.

1306542260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1796 (or 1794 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 1306542260 is about 36146.1237202553. The cubic root of 1306542260 is about 1093.2206347830.

Adding to 1306542260 its reverse (622456031), we get a palindrome (1928998291).

The spelling of 1306542260 in words is "one billion, three hundred six million, five hundred forty-two thousand, two hundred sixty".