1128420950 has 12 divisors (see below), whose sum is σ = 2098863060. Its totient is φ = 451368360.

The previous prime is 1128420947. The next prime is 1128420977. The reversal of 1128420950 is 590248211.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 11284160 + ... + 11284259.

It is an arithmetic number, because the mean of its divisors is an integer number (174905255).

Almost surely, 2^1128420950 is an apocalyptic number.

1128420950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1128420950 is a deficient number, since it is larger than the sum of its proper divisors (970442110).

1128420950 is a wasteful number, since it uses less digits than its factorization.

1128420950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22568431 (or 22568426 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 1128420950 is about 33591.9774648650. The cubic root of 1128420950 is about 1041.0950466624.

The spelling of 1128420950 in words is "one billion, one hundred twenty-eight million, four hundred twenty thousand, nine hundred fifty".