8420668382 has 16 divisors (see below), whose sum is σ = 14437956480. Its totient is φ = 3608226648.

The previous prime is 8420668313. The next prime is 8420668393. The reversal of 8420668382 is 2838660248.

It is a super-2 number, since 2×8420668382² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35369 + ... + 134507.

It is an arithmetic number, because the mean of its divisors is an integer number (902372280).

Almost surely, 2^8420668382 is an apocalyptic number.

8420668382 is a deficient number, since it is larger than the sum of its proper divisors (6017288098).

8420668382 is a wasteful number, since it uses less digits than its factorization.

8420668382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105215.

The product of its (nonzero) digits is 884736, while the sum is 47.

The square root of 8420668382 is about 91764.1998929866. The cubic root of 8420668382 is about 2034.4585915715.

The spelling of 8420668382 in words is "eight billion, four hundred twenty million, six hundred sixty-eight thousand, three hundred eighty-two".