1128285390 has 16 divisors (see below), whose sum is σ = 2707885008. Its totient is φ = 300876096.

The previous prime is 1128285377. The next prime is 1128285391. The reversal of 1128285390 is 935828211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1128285391) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 18804727 + ... + 18804786.

It is an arithmetic number, because the mean of its divisors is an integer number (169242813).

Almost surely, 2^1128285390 is an apocalyptic number.

1128285390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1128285390 is an abundant number, since it is smaller than the sum of its proper divisors (1579599618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1128285390 is a wasteful number, since it uses less digits than its factorization.

1128285390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37609523.

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 1128285390 is about 33589.9596605891. The cubic root of 1128285390 is about 1041.0533552184.

The spelling of 1128285390 in words is "one billion, one hundred twenty-eight million, two hundred eighty-five thousand, three hundred ninety".