8015220 has 48 divisors (see below), whose sum is σ = 24937920. Its totient is φ = 2137248.

The previous prime is 8015179. The next prime is 8015221. The reversal of 8015220 is 225108.

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 = 8015193 and 8015202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8015221) by changing a digit.

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, 6882 + ... + 7961.

It is an arithmetic number, because the mean of its divisors is an integer number (519540).

Almost surely, 2^8015220 is an apocalyptic number.

It is an amenable number.

8015220 is an abundant number, since it is smaller than the sum of its proper divisors (16922700).

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

8015220 is a wasteful number, since it uses less digits than its factorization.

8015220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14861 (or 14853 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 8015220 is about 2831.1163875758. The cubic root of 8015220 is about 200.1267529848.

The spelling of 8015220 in words is "eight million, fifteen thousand, two hundred twenty".