13443516240 has 480 divisors, whose sum is σ = 53662065408. Its totient is φ = 2723635200.

The previous prime is 13443516239. The next prime is 13443516257. The reversal of 13443516240 is 4261534431.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8333674 + ... + 8335286.

Almost surely, 2^13443516240 is an apocalyptic number.

13443516240 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 13443516240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26831032704).

13443516240 is an abundant number, since it is smaller than the sum of its proper divisors (40218549168).

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

13443516240 is a wasteful number, since it uses less digits than its factorization.

13443516240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1699 (or 1682 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

The spelling of 13443516240 in words is "thirteen billion, four hundred forty-three million, five hundred sixteen thousand, two hundred forty".