13981460 has 12 divisors (see below), whose sum is σ = 29361108. Its totient is φ = 5592576.

The previous prime is 13981459. The next prime is 13981469. The reversal of 13981460 is 6418931.

It is a happy number.

13981460 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 10163344 + 3818116 = 3188^2 + 1954^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13981469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 349517 + ... + 349556.

It is an arithmetic number, because the mean of its divisors is an integer number (2446759).

Almost surely, 2^13981460 is an apocalyptic number.

13981460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13981460 is an abundant number, since it is smaller than the sum of its proper divisors (15379648).

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

13981460 is a wasteful number, since it uses less digits than its factorization.

13981460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699082 (or 699080 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 13981460 is about 3739.1790542845. The cubic root of 13981460 is about 240.9077888534.

It can be divided in two parts, 13981 and 460, that added together give a palindrome (14441).

The spelling of 13981460 in words is "thirteen million, nine hundred eighty-one thousand, four hundred sixty".