1128630556 has 6 divisors (see below), whose sum is σ = 1975103480. Its totient is φ = 564315276.

The previous prime is 1128630541. The next prime is 1128630563. The reversal of 1128630556 is 6550368211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 141078816 + ... + 141078823.

Almost surely, 2^1128630556 is an apocalyptic number.

It is an amenable number.

1128630556 is a deficient number, since it is larger than the sum of its proper divisors (846472924).

1128630556 is a wasteful number, since it uses less digits than its factorization.

1128630556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282157643 (or 282157641 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 1128630556 is about 33595.0972018240. The cubic root of 1128630556 is about 1041.1595043627.

Adding to 1128630556 its reverse (6550368211), we get a palindrome (7678998767).

The spelling of 1128630556 in words is "one billion, one hundred twenty-eight million, six hundred thirty thousand, five hundred fifty-six".