13938460 has 48 divisors (see below), whose sum is σ = 30897216. Its totient is φ = 5271552.

The previous prime is 13938451. The next prime is 13938497. The reversal of 13938460 is 6483931.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72124 + ... + 72316.

It is an arithmetic number, because the mean of its divisors is an integer number (643692).

Almost surely, 2^13938460 is an apocalyptic number.

13938460 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 13938460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15448608).

13938460 is an abundant number, since it is smaller than the sum of its proper divisors (16958756).

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

13938460 is a wasteful number, since it uses less digits than its factorization.

13938460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382 (or 380 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 13938460 is about 3733.4247012629. The cubic root of 13938460 is about 240.6605644852.

The spelling of 13938460 in words is "thirteen million, nine hundred thirty-eight thousand, four hundred sixty".