13409593920 has 168 divisors, whose sum is σ = 46773754560. Its totient is φ = 3525473280.

The previous prime is 13409593871. The next prime is 13409593921. The reversal of 13409593920 is 2939590431.

13409593920 is a `hidden beast` number, since 1 + 34 + 0 + 9 + 593 + 9 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (13409593921) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 171691 + ... + 237269.

Almost surely, 2^13409593920 is an apocalyptic number.

13409593920 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 13409593920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23386877280).

13409593920 is an abundant number, since it is smaller than the sum of its proper divisors (33364160640).

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

13409593920 is a wasteful number, since it uses less digits than its factorization.

13409593920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65673 (or 65660 counting only the distinct ones).

The product of its (nonzero) digits is 262440, while the sum is 45.

The spelling of 13409593920 in words is "thirteen billion, four hundred nine million, five hundred ninety-three thousand, nine hundred twenty".