1128467838 has 32 divisors (see below), whose sum is σ = 2348476416. Its totient is φ = 361201568.

The previous prime is 1128467831. The next prime is 1128467839. The reversal of 1128467838 is 8387648211.

It is a super-2 number, since 2×1128467838² = 2546879322800788488, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1128467831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22806 + ... + 52697.

It is an arithmetic number, because the mean of its divisors is an integer number (73389888).

Almost surely, 2^1128467838 is an apocalyptic number.

1128467838 is an abundant number, since it is smaller than the sum of its proper divisors (1220008578).

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

1128467838 is a wasteful number, since it uses less digits than its factorization.

1128467838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75608.

The product of its digits is 516096, while the sum is 48.

The square root of 1128467838 is about 33592.6753623465. The cubic root of 1128467838 is about 1041.1094662778.

The spelling of 1128467838 in words is "one billion, one hundred twenty-eight million, four hundred sixty-seven thousand, eight hundred thirty-eight".