13025389440 has 512 divisors, whose sum is σ = 51255244800. Its totient is φ = 2747695104.

The previous prime is 13025389439. The next prime is 13025389451. The reversal of 13025389440 is 4498352031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8963754 + ... + 8965206.

It is an arithmetic number, because the mean of its divisors is an integer number (100107900).

Almost surely, 2^13025389440 is an apocalyptic number.

13025389440 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 13025389440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25627622400).

13025389440 is an abundant number, since it is smaller than the sum of its proper divisors (38229855360).

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

13025389440 is a wasteful number, since it uses less digits than its factorization.

13025389440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1534 (or 1522 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The spelling of 13025389440 in words is "thirteen billion, twenty-five million, three hundred eighty-nine thousand, four hundred forty".