1128739734 has 12 divisors (see below), whose sum is σ = 2445602796. Its totient is φ = 376246572.

The previous prime is 1128739709. The next prime is 1128739747. The reversal of 1128739734 is 4379378211.

It is a super-2 number, since 2×1128739734² = 2548106774220781512, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1128739734.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31353864 + ... + 31353899.

It is an arithmetic number, because the mean of its divisors is an integer number (203800233).

Almost surely, 2^1128739734 is an apocalyptic number.

1128739734 is an abundant number, since it is smaller than the sum of its proper divisors (1316863062).

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

1128739734 is a wasteful number, since it uses less digits than its factorization.

1128739734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62707771 (or 62707768 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 1128739734 is about 33596.7220722498. The cubic root of 1128739734 is about 1041.1930754448.

The spelling of 1128739734 in words is "one billion, one hundred twenty-eight million, seven hundred thirty-nine thousand, seven hundred thirty-four".