8226621380 has 24 divisors (see below), whose sum is σ = 17278348248. Its totient is φ = 3290183168.

The previous prime is 8226621289. The next prime is 8226621383. The reversal of 8226621380 is 831266228.

It can be written as a sum of positive squares in 4 ways, for example, as 450203524 + 7776417856 = 21218^2 + 88184^2 .

It is not an unprimeable number, because it can be changed into a prime (8226621383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139772 + ... + 189708.

It is an arithmetic number, because the mean of its divisors is an integer number (719931177).

Almost surely, 2^8226621380 is an apocalyptic number.

It is an amenable number.

8226621380 is an abundant number, since it is smaller than the sum of its proper divisors (9051726868).

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

8226621380 is a wasteful number, since it uses less digits than its factorization.

8226621380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58183 (or 58181 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 8226621380 is about 90700.7242528967. The cubic root of 8226621380 is about 2018.7095456817.

The spelling of 8226621380 in words is "eight billion, two hundred twenty-six million, six hundred twenty-one thousand, three hundred eighty".