1127647642 has 24 divisors (see below), whose sum is σ = 1861579188. Its totient is φ = 511917120.

The previous prime is 1127647637. The next prime is 1127647673. The reversal of 1127647642 is 2467467211.

It can be written as a sum of positive squares in 2 ways, for example, as 1082475801 + 45171841 = 32901^2 + 6721^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1127647595 and 1127647604.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 224268 + ... + 229240.

Almost surely, 2^1127647642 is an apocalyptic number.

1127647642 is a deficient number, since it is larger than the sum of its proper divisors (733931546).

1127647642 is a wasteful number, since it uses less digits than its factorization.

1127647642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5934 (or 5923 counting only the distinct ones).

The product of its digits is 112896, while the sum is 40.

The square root of 1127647642 is about 33580.4651843896. The cubic root of 1127647642 is about 1040.8571711581.

The spelling of 1127647642 in words is "one billion, one hundred twenty-seven million, six hundred forty-seven thousand, six hundred forty-two".