13140032 has 56 divisors (see below), whose sum is σ = 27797760. Its totient is φ = 6151680.

The previous prime is 13140013. The next prime is 13140047. The reversal of 13140032 is 23004131.

It is a super-2 number, since 2×13140032² = 345320881922048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13139989 and 13140016.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73319 + ... + 73497.

Almost surely, 2^13140032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13140032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13898880).

13140032 is an abundant number, since it is smaller than the sum of its proper divisors (14657728).

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

13140032 is a wasteful number, since it uses less digits than its factorization.

13140032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259 (or 249 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 13140032 is about 3624.9182059738. The cubic root of 13140032 is about 235.9747171996.

Adding to 13140032 its reverse (23004131), we get a palindrome (36144163).

The spelling of 13140032 in words is "thirteen million, one hundred forty thousand, thirty-two".