13036844040 has 128 divisors (see below), whose sum is σ = 42913411200. Its totient is φ = 3142123520.

The previous prime is 13036843999. The next prime is 13036844057. The reversal of 13036844040 is 4044863031.

It is a happy number.

It is a Cunningham number, because it is equal to 114179²-1.

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

It is a junction number, because it is equal to n+sod(n) for n = 13036843992 and 13036844010.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 199816 + ... + 256904.

It is an arithmetic number, because the mean of its divisors is an integer number (335261025).

Almost surely, 2^13036844040 is an apocalyptic number.

13036844040 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 13036844040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21456705600).

13036844040 is an abundant number, since it is smaller than the sum of its proper divisors (29876567160).

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

13036844040 is a wasteful number, since it uses less digits than its factorization.

13036844040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57287 (or 57283 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 33.

The spelling of 13036844040 in words is "thirteen billion, thirty-six million, eight hundred forty-four thousand, forty".