13242120 has 64 divisors (see below), whose sum is σ = 40029120. Its totient is φ = 3504384.

The previous prime is 13242101. The next prime is 13242121. The reversal of 13242120 is 2124231.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 13242120.

It is not an unprimeable number, because it can be changed into a prime (13242121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19222 + ... + 19898.

It is an arithmetic number, because the mean of its divisors is an integer number (625455).

Almost surely, 2^13242120 is an apocalyptic number.

13242120 is a gapful number since it is divisible by the number (10) 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 13242120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20014560).

13242120 is an abundant number, since it is smaller than the sum of its proper divisors (26787000).

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

13242120 is a wasteful number, since it uses less digits than its factorization.

13242120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854 (or 850 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 13242120 is about 3638.9723824179. The cubic root of 13242120 is about 236.5842557299.

Adding to 13242120 its reverse (2124231), we get a palindrome (15366351).

The spelling of 13242120 in words is "thirteen million, two hundred forty-two thousand, one hundred twenty".