8420226240 has 56 divisors (see below), whose sum is σ = 26734221360. Its totient is φ = 2245393408.

The previous prime is 8420226233. The next prime is 8420226253. The reversal of 8420226240 is 426220248.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 8420226198 and 8420226207.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4384575 + ... + 4386494.

It is an arithmetic number, because the mean of its divisors is an integer number (477396810).

Almost surely, 2^8420226240 is an apocalyptic number.

8420226240 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8420226240 is an abundant number, since it is smaller than the sum of its proper divisors (18313995120).

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

8420226240 is a wasteful number, since it uses less digits than its factorization.

8420226240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8771089 (or 8771079 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 30.

The square root of 8420226240 is about 91761.7907410268. The cubic root of 8420226240 is about 2034.4229833397.

Adding to 8420226240 its reverse (426220248), we get a palindrome (8846446488).

The spelling of 8420226240 in words is "eight billion, four hundred twenty million, two hundred twenty-six thousand, two hundred forty".