1306240752 has 40 divisors (see below), whose sum is σ = 3380582736. Its totient is φ = 434622976.

The previous prime is 1306240729. The next prime is 1306240811. The reversal of 1306240752 is 2570426031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2308 + ... + 51164.

Almost surely, 2^1306240752 is an apocalyptic number.

1306240752 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1306240752 is an abundant number, since it is smaller than the sum of its proper divisors (2074341984).

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

1306240752 is a wasteful number, since it uses less digits than its factorization.

1306240752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49425 (or 49419 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 1306240752 is about 36141.9527972687. The cubic root of 1306240752 is about 1093.1365349072.

Adding to 1306240752 its reverse (2570426031), we get a palindrome (3876666783).

The spelling of 1306240752 in words is "one billion, three hundred six million, two hundred forty thousand, seven hundred fifty-two".