13082220 has 36 divisors (see below), whose sum is σ = 39683280. Its totient is φ = 3488544.

The previous prime is 13082207. The next prime is 13082221. The reversal of 13082220 is 2228031.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×13082220² = 342288960256800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 13082193 and 13082202.

It is not an unprimeable number, because it can be changed into a prime (13082221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36160 + ... + 36519.

Almost surely, 2^13082220 is an apocalyptic number.

13082220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13082220 is an abundant number, since it is smaller than the sum of its proper divisors (26601060).

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

13082220 is a wasteful number, since it uses less digits than its factorization.

13082220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72694 (or 72689 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 13082220 is about 3616.9351666846. The cubic root of 13082220 is about 235.6281369558.

The spelling of 13082220 in words is "thirteen million, eighty-two thousand, two hundred twenty".