13981032 has 96 divisors (see below), whose sum is σ = 42163200. Its totient is φ = 4290624.

The previous prime is 13981027. The next prime is 13981111. The reversal of 13981032 is 23018931.

13981032 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 13980987 and 13981005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36313 + ... + 36695.

It is an arithmetic number, because the mean of its divisors is an integer number (439200).

Almost surely, 2^13981032 is an apocalyptic number.

13981032 is a gapful number since it is divisible by the number (12) 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 13981032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21081600).

13981032 is an abundant number, since it is smaller than the sum of its proper divisors (28182168).

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

13981032 is a wasteful number, since it uses less digits than its factorization.

13981032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424 (or 401 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 13981032 is about 3739.1218220325. The cubic root of 13981032 is about 240.9053306079.

Adding to 13981032 its reverse (23018931), we get a palindrome (36999963).

The spelling of 13981032 in words is "thirteen million, nine hundred eighty-one thousand, thirty-two".