1128734904 has 32 divisors (see below), whose sum is σ = 3078368640. Its totient is φ = 342040800.

The previous prime is 1128734891. The next prime is 1128734909. The reversal of 1128734904 is 4094378211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1128734909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2137492 + ... + 2138019.

It is an arithmetic number, because the mean of its divisors is an integer number (96199020).

Almost surely, 2^1128734904 is an apocalyptic number.

It is an amenable number.

1128734904 is an abundant number, since it is smaller than the sum of its proper divisors (1949633736).

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

1128734904 is a wasteful number, since it uses less digits than its factorization.

1128734904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4275531 (or 4275527 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 1128734904 is about 33596.6501901603. The cubic root of 1128734904 is about 1041.1915903165.

The spelling of 1128734904 in words is "one billion, one hundred twenty-eight million, seven hundred thirty-four thousand, nine hundred four".