8404379282 has 32 divisors (see below), whose sum is σ = 14206398192. Its totient is φ = 3702875904.

The previous prime is 8404379261. The next prime is 8404379287. The reversal of 8404379282 is 2829734048.

It can be written as a sum of positive squares in 8 ways, for example, as 7895921881 + 508457401 = 88859^2 + 22549^2 .

It is a super-2 number, since 2×8404379282² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8404379287) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 31433 + ... + 133404.

Almost surely, 2^8404379282 is an apocalyptic number.

8404379282 is a deficient number, since it is larger than the sum of its proper divisors (5802018910).

8404379282 is a wasteful number, since it uses less digits than its factorization.

8404379282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164942.

The product of its (nonzero) digits is 774144, while the sum is 47.

The square root of 8404379282 is about 91675.4017280535. The cubic root of 8404379282 is about 2033.1459130726.

The spelling of 8404379282 in words is "eight billion, four hundred four million, three hundred seventy-nine thousand, two hundred eighty-two".