1138563630 has 48 divisors (see below), whose sum is σ = 3040281504. Its totient is φ = 295410240.

The previous prime is 1138563611. The next prime is 1138563637. The reversal of 1138563630 is 363658311.

It is a happy number.

1138563630 is a `hidden beast` number, since 1 + 1 + 38 + 563 + 63 + 0 = 666.

1138563630 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1138563637) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 167626 + ... + 174285.

It is an arithmetic number, because the mean of its divisors is an integer number (63339198).

Almost surely, 2^1138563630 is an apocalyptic number.

1138563630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1138563630 is an abundant number, since it is smaller than the sum of its proper divisors (1901717874).

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

1138563630 is a wasteful number, since it uses less digits than its factorization.

1138563630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341961 (or 341958 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 1138563630 is about 33742.6085239420. The cubic root of 1138563630 is about 1044.2050011400.

The spelling of 1138563630 in words is "one billion, one hundred thirty-eight million, five hundred sixty-three thousand, six hundred thirty".