1128901826 has 8 divisors (see below), whose sum is σ = 1823610684. Its totient is φ = 521031600.

The previous prime is 1128901819. The next prime is 1128901849. The reversal of 1128901826 is 6281098211.

It can be written as a sum of positive squares in 2 ways, for example, as 1128892801 + 9025 = 33599^2 + 95^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1128901826² = 2548838665492268552, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1128901826.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21709625 + ... + 21709676.

Almost surely, 2^1128901826 is an apocalyptic number.

1128901826 is a deficient number, since it is larger than the sum of its proper divisors (694708858).

1128901826 is a wasteful number, since it uses less digits than its factorization.

1128901826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43419316.

The product of its (nonzero) digits is 13824, while the sum is 38.

The square root of 1128901826 is about 33599.1343043240. The cubic root of 1128901826 is about 1041.2429130306.

The spelling of 1128901826 in words is "one billion, one hundred twenty-eight million, nine hundred one thousand, eight hundred twenty-six".