1128436850 has 24 divisors (see below), whose sum is σ = 2150088948. Its totient is φ = 440364800.

The previous prime is 1128436843. The next prime is 1128436901. The reversal of 1128436850 is 586348211.

It can be written as a sum of positive squares in 6 ways, for example, as 93334921 + 1035101929 = 9661^2 + 32173^2 .

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 273179 + ... + 277278.

Almost surely, 2^1128436850 is an apocalyptic number.

1128436850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1128436850 is a deficient number, since it is larger than the sum of its proper divisors (1021652098).

1128436850 is a wasteful number, since it uses less digits than its factorization.

1128436850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550510 (or 550505 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 1128436850 is about 33592.2141276814. The cubic root of 1128436850 is about 1041.0999364846.

The spelling of 1128436850 in words is "one billion, one hundred twenty-eight million, four hundred thirty-six thousand, eight hundred fifty".