1127439028 has 24 divisors (see below), whose sum is σ = 1982117088. Its totient is φ = 561127776.

The previous prime is 1127439011. The next prime is 1127439101. The reversal of 1127439028 is 8209347211.

It is a super-2 number, since 2×1127439028² = 2542237523715169568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1537750 + ... + 1538482.

It is an arithmetic number, because the mean of its divisors is an integer number (82588212).

Almost surely, 2^1127439028 is an apocalyptic number.

It is an amenable number.

1127439028 is a deficient number, since it is larger than the sum of its proper divisors (854678060).

1127439028 is a wasteful number, since it uses less digits than its factorization.

1127439028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1983 (or 1981 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 1127439028 is about 33577.3588598031. The cubic root of 1127439028 is about 1040.7929812578.

It can be divided in two parts, 112743 and 9028, that added together give a triangular number (121771 = T₄₉₃).

The spelling of 1127439028 in words is "one billion, one hundred twenty-seven million, four hundred thirty-nine thousand, twenty-eight".