1138707488 has 24 divisors (see below), whose sum is σ = 2245598460. Its totient is φ = 568396800.

The previous prime is 1138707463. The next prime is 1138707517. The reversal of 1138707488 is 8847078311.

It can be written as a sum of positive squares in 2 ways, for example, as 1082936464 + 55771024 = 32908^2 + 7468^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10373 + ... + 48836.

Almost surely, 2^1138707488 is an apocalyptic number.

It is an amenable number.

1138707488 is a deficient number, since it is larger than the sum of its proper divisors (1106890972).

1138707488 is an equidigital number, since it uses as much as digits as its factorization.

1138707488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59820 (or 59812 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 47.

The square root of 1138707488 is about 33744.7401530965. The cubic root of 1138707488 is about 1044.2489778702.

The spelling of 1138707488 in words is "one billion, one hundred thirty-eight million, seven hundred seven thousand, four hundred eighty-eight".