13059840 has 144 divisors (see below), whose sum is σ = 44150400. Its totient is φ = 3280896.

The previous prime is 13059829. The next prime is 13059847. The reversal of 13059840 is 4895031.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 13059798 and 13059807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13059847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72871 + ... + 73049.

It is an arithmetic number, because the mean of its divisors is an integer number (306600).

Almost surely, 2^13059840 is an apocalyptic number.

13059840 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 13059840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22075200).

13059840 is an abundant number, since it is smaller than the sum of its proper divisors (31090560).

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

13059840 is a wasteful number, since it uses less digits than its factorization.

13059840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222 (or 208 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 13059840 is about 3613.8400628694. The cubic root of 13059840 is about 235.4936957666.

The spelling of 13059840 in words is "thirteen million, fifty-nine thousand, eight hundred forty".