13002220 has 48 divisors (see below), whose sum is σ = 34046208. Its totient is φ = 4052160.

The previous prime is 13002203. The next prime is 13002233. The reversal of 13002220 is 2220031.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 13002197 and 13002206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2682 + ... + 5761.

It is an arithmetic number, because the mean of its divisors is an integer number (709296).

Almost surely, 2^13002220 is an apocalyptic number.

13002220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13002220 is an abundant number, since it is smaller than the sum of its proper divisors (21043988).

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

13002220 is a wasteful number, since it uses less digits than its factorization.

13002220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8470 (or 8468 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 13002220 is about 3605.8591209308. The cubic root of 13002220 is about 235.1468525308.

Adding to 13002220 its reverse (2220031), we get a palindrome (15222251).

The spelling of 13002220 in words is "thirteen million, two thousand, two hundred twenty".