1306602252 has 144 divisors (see below), whose sum is σ = 3665450880. Its totient is φ = 405533952.

The previous prime is 1306602233. The next prime is 1306602263. The reversal of 1306602252 is 2522066031.

1306602252 is a `hidden beast` number, since 1 + 3 + 0 + 6 + 602 + 2 + 52 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1767699 + ... + 1768437.

It is an arithmetic number, because the mean of its divisors is an integer number (25454520).

Almost surely, 2^1306602252 is an apocalyptic number.

1306602252 is a gapful number since it is divisible by the number (12) 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 1306602252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1832725440).

1306602252 is an abundant number, since it is smaller than the sum of its proper divisors (2358848628).

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

1306602252 is a wasteful number, since it uses less digits than its factorization.

1306602252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882 (or 868 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 1306602252 is about 36146.9535645813. The cubic root of 1306602252 is about 1093.2373668578.

Adding to 1306602252 its reverse (2522066031), we get a palindrome (3828668283).

The spelling of 1306602252 in words is "one billion, three hundred six million, six hundred two thousand, two hundred fifty-two".