13930720 has 48 divisors (see below), whose sum is σ = 33339600. Its totient is φ = 5499904.

The previous prime is 13930717. The next prime is 13930723. The reversal of 13930720 is 2703931.

It is an interprime number because it is at equal distance from previous prime (13930717) and next prime (13930723).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13930723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12756 + ... + 13804.

It is an arithmetic number, because the mean of its divisors is an integer number (694575).

Almost surely, 2^13930720 is an apocalyptic number.

13930720 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 13930720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16669800).

13930720 is an abundant number, since it is smaller than the sum of its proper divisors (19408880).

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

13930720 is a wasteful number, since it uses less digits than its factorization.

13930720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147 (or 1139 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 13930720 is about 3732.3879755460. The cubic root of 13930720 is about 240.6160101212.

The spelling of 13930720 in words is "thirteen million, nine hundred thirty thousand, seven hundred twenty".