13271730 has 64 divisors (see below), whose sum is σ = 34432128. Its totient is φ = 3261440.

The previous prime is 13271723. The next prime is 13271743. The reversal of 13271730 is 3717231.

It is a super-2 number, since 2×13271730² = 352277634385800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13271730.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26785 + ... + 27275.

It is an arithmetic number, because the mean of its divisors is an integer number (538002).

Almost surely, 2^13271730 is an apocalyptic number.

13271730 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 13271730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17216064).

13271730 is an abundant number, since it is smaller than the sum of its proper divisors (21160398).

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

13271730 is a wasteful number, since it uses less digits than its factorization.

13271730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571.

The product of its (nonzero) digits is 882, while the sum is 24.

The square root of 13271730 is about 3643.0385669109. The cubic root of 13271730 is about 236.7604622820.

Adding to 13271730 its reverse (3717231), we get a palindrome (16988961).

The spelling of 13271730 in words is "thirteen million, two hundred seventy-one thousand, seven hundred thirty".