1300532013440 has 128 divisors (see below), whose sum is σ = 3392467604640. Its totient is φ = 472817664000.

The previous prime is 1300532013433. The next prime is 1300532013457. The reversal of 1300532013440 is 443102350031.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

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, 37160750 + ... + 37195730.

Almost surely, 2^{1300532013440} is an apocalyptic number.

1300532013440 is a gapful number since it is divisible by the number (10) 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 1300532013440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1696233802320).

1300532013440 is an abundant number, since it is smaller than the sum of its proper divisors (2091935591200).

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

1300532013440 is a wasteful number, since it uses less digits than its factorization.

1300532013440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40292 (or 40280 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 1300532013440 its reverse (443102350031), we get a palindrome (1743634363471).

The spelling of 1300532013440 in words is "one trillion, three hundred billion, five hundred thirty-two million, thirteen thousand, four hundred forty".