13127730 has 64 divisors (see below), whose sum is σ = 39287808. Its totient is φ = 2727360.

The previous prime is 13127701. The next prime is 13127731. The reversal of 13127730 is 3772131.

It is a self number, because there is not a number n which added to its sum of digits gives 13127730.

It is not an unprimeable number, because it can be changed into a prime (13127731) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 532 + ... + 5151.

It is an arithmetic number, because the mean of its divisors is an integer number (613872).

Almost surely, 2^13127730 is an apocalyptic number.

13127730 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 13127730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19643904).

13127730 is an abundant number, since it is smaller than the sum of its proper divisors (26160078).

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

13127730 is a wasteful number, since it uses less digits than its factorization.

13127730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5711.

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

The square root of 13127730 is about 3623.2209427525. The cubic root of 13127730 is about 235.9010525545.

Adding to 13127730 its reverse (3772131), we get a palindrome (16899861).

The spelling of 13127730 in words is "thirteen million, one hundred twenty-seven thousand, seven hundred thirty".