1128917934 has 48 divisors (see below), whose sum is σ = 2466135360. Its totient is φ = 373222080.

The previous prime is 1128917921. The next prime is 1128917939. The reversal of 1128917934 is 4397198211.

It is a self number, because there is not a number n which added to its sum of digits gives 1128917934.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1128917939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1707564 + ... + 1708224.

It is an arithmetic number, because the mean of its divisors is an integer number (51377820).

Almost surely, 2^1128917934 is an apocalyptic number.

1128917934 is an abundant number, since it is smaller than the sum of its proper divisors (1337217426).

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

1128917934 is a wasteful number, since it uses less digits than its factorization.

1128917934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1305 (or 1302 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The square root of 1128917934 is about 33599.3740120259. The cubic root of 1128917934 is about 1041.2478654131.

The spelling of 1128917934 in words is "one billion, one hundred twenty-eight million, nine hundred seventeen thousand, nine hundred thirty-four".