1300440132 has 36 divisors (see below), whose sum is σ = 3367403676. Its totient is φ = 422906880.

The previous prime is 1300440131. The next prime is 1300440137. The reversal of 1300440132 is 2310440031.

It can be written as a sum of positive squares in 2 ways, for example, as 165019716 + 1135420416 = 12846^2 + 33696^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1300440132² = 3382289073832354848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1300440131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 439053 + ... + 442004.

It is an arithmetic number, because the mean of its divisors is an integer number (93538991).

Almost surely, 2^1300440132 is an apocalyptic number.

1300440132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1300440132 is an abundant number, since it is smaller than the sum of its proper divisors (2066963544).

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

1300440132 is a wasteful number, since it uses less digits than its factorization.

1300440132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881108 (or 881103 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1300440132 is about 36061.6157707888. The cubic root of 1300440132 is about 1091.5160376078.

Adding to 1300440132 its reverse (2310440031), we get a palindrome (3610880163).

The spelling of 1300440132 in words is "one billion, three hundred million, four hundred forty thousand, one hundred thirty-two".