1128654850 has 24 divisors (see below), whose sum is σ = 2190574080. Its totient is φ = 431832720.

The previous prime is 1128654817. The next prime is 1128654887. The reversal of 1128654850 is 584568211.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 489570 + ... + 491869.

It is an arithmetic number, because the mean of its divisors is an integer number (91273920).

Almost surely, 2^1128654850 is an apocalyptic number.

1128654850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1128654850 is a deficient number, since it is larger than the sum of its proper divisors (1061919230).

1128654850 is a wasteful number, since it uses less digits than its factorization.

1128654850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981474 (or 981469 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 40.

The square root of 1128654850 is about 33595.4587704946. The cubic root of 1128654850 is about 1041.1669746984.

The spelling of 1128654850 in words is "one billion, one hundred twenty-eight million, six hundred fifty-four thousand, eight hundred fifty".