1138255600 has 30 divisors (see below), whose sum is σ = 2734660040. Its totient is φ = 455302080.

The previous prime is 1138255567. The next prime is 1138255603. The reversal of 1138255600 is 65528311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1138255603) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1422420 + ... + 1423219.

Almost surely, 2^1138255600 is an apocalyptic number.

1138255600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1138255600 is an abundant number, since it is smaller than the sum of its proper divisors (1596404440).

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

1138255600 is a wasteful number, since it uses less digits than its factorization.

1138255600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2845657 (or 2845646 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 1138255600 is about 33738.0438081404. The cubic root of 1138255600 is about 1044.1108253239.

The spelling of 1138255600 in words is "one billion, one hundred thirty-eight million, two hundred fifty-five thousand, six hundred".