8220867490 has 32 divisors (see below), whose sum is σ = 16195443264. Its totient is φ = 2979656640.

The previous prime is 8220867451. The next prime is 8220867517. The reversal of 8220867490 is 947680228.

8220867490 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×8220867490³ (a number of 31 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8220867490.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87949 + ... + 155488.

It is an arithmetic number, because the mean of its divisors is an integer number (506107602).

Almost surely, 2^8220867490 is an apocalyptic number.

8220867490 is a deficient number, since it is larger than the sum of its proper divisors (7974575774).

8220867490 is a wasteful number, since it uses less digits than its factorization.

8220867490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243762.

The product of its (nonzero) digits is 387072, while the sum is 46.

The square root of 8220867490 is about 90668.9996084660. Note that the first 3 decimals coincide. The cubic root of 8220867490 is about 2018.2387918036.

The spelling of 8220867490 in words is "eight billion, two hundred twenty million, eight hundred sixty-seven thousand, four hundred ninety".