13913730 has 48 divisors (see below), whose sum is σ = 37350144. Its totient is φ = 3589920.

The previous prime is 13913729. The next prime is 13913737. The reversal of 13913730 is 3731931.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13913694 and 13913703.

It is not an unprimeable number, because it can be changed into a prime (13913737) 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, 297 + ... + 5283.

It is an arithmetic number, because the mean of its divisors is an integer number (778128).

Almost surely, 2^13913730 is an apocalyptic number.

13913730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13913730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18675072).

13913730 is an abundant number, since it is smaller than the sum of its proper divisors (23436414).

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

13913730 is a wasteful number, since it uses less digits than its factorization.

13913730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5031 (or 5028 counting only the distinct ones).

The product of its (nonzero) digits is 1701, while the sum is 27.

The square root of 13913730 is about 3730.1112583943. Note that the first 3 decimals coincide. The cubic root of 13913730 is about 240.5181513582.

The spelling of 13913730 in words is "thirteen million, nine hundred thirteen thousand, seven hundred thirty".