1138617630 has 48 divisors (see below), whose sum is σ = 2962421280. Its totient is φ = 303424704.

The previous prime is 1138617607. The next prime is 1138617637. The reversal of 1138617630 is 367168311.

1138617630 is a `hidden beast` number, since 1 + 1 + 3 + 8 + 6 + 17 + 630 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1138617637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 165744 + ... + 172476.

It is an arithmetic number, because the mean of its divisors is an integer number (61717110).

Almost surely, 2^1138617630 is an apocalyptic number.

1138617630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1138617630 is an abundant number, since it is smaller than the sum of its proper divisors (1823803650).

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

1138617630 is a wasteful number, since it uses less digits than its factorization.

1138617630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8625 (or 8622 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 1138617630 is about 33743.4086896982. The cubic root of 1138617630 is about 1044.2215091264.

The spelling of 1138617630 in words is "one billion, one hundred thirty-eight million, six hundred seventeen thousand, six hundred thirty".