1128407684 has 6 divisors (see below), whose sum is σ = 1974713454. Its totient is φ = 564203840.

The previous prime is 1128407681. The next prime is 1128407689. The reversal of 1128407684 is 4867048211.

It can be written as a sum of positive squares in only one way, i.e., 788374084 + 340033600 = 28078^2 + 18440^2 .

It is not an unprimeable number, because it can be changed into a prime (1128407681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 141050957 + ... + 141050964.

It is an arithmetic number, because the mean of its divisors is an integer number (329118909).

Almost surely, 2^1128407684 is an apocalyptic number.

It is an amenable number.

1128407684 is a deficient number, since it is larger than the sum of its proper divisors (846305770).

1128407684 is a wasteful number, since it uses less digits than its factorization.

1128407684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282101925 (or 282101923 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 41.

The square root of 1128407684 is about 33591.7800064242. The cubic root of 1128407684 is about 1041.0909668548.

The spelling of 1128407684 in words is "one billion, one hundred twenty-eight million, four hundred seven thousand, six hundred eighty-four".