8428049408 has 22 divisors (see below), whose sum is σ = 16847870346. Its totient is φ = 4214024192.

The previous prime is 8428049369. The next prime is 8428049467. The reversal of 8428049408 is 8049408248.

It can be written as a sum of positive squares in only one way, i.e., 4597924864 + 3830124544 = 67808^2 + 61888^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4114235 + ... + 4116282.

Almost surely, 2^8428049408 is an apocalyptic number.

It is an amenable number.

8428049408 is a deficient number, since it is larger than the sum of its proper divisors (8419820938).

8428049408 is an equidigital number, since it uses as much as digits as its factorization.

8428049408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8230537 (or 8230519 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 47.

The square root of 8428049408 is about 91804.4084344537. The cubic root of 8428049408 is about 2035.0528439412.

The spelling of 8428049408 in words is "eight billion, four hundred twenty-eight million, forty-nine thousand, four hundred eight".