1138203744 has 48 divisors (see below), whose sum is σ = 3017392560. Its totient is φ = 375641600.

The previous prime is 1138203739. The next prime is 1138203749. The reversal of 1138203744 is 4473028311.

It is an interprime number because it is at equal distance from previous prime (1138203739) and next prime (1138203749).

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1138203749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48999 + ... + 68390.

It is an arithmetic number, because the mean of its divisors is an integer number (62862345).

Almost surely, 2^1138203744 is an apocalyptic number.

It is an amenable number.

1138203744 is an abundant number, since it is smaller than the sum of its proper divisors (1879188816).

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

1138203744 is a wasteful number, since it uses less digits than its factorization.

1138203744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117503 (or 117495 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 1138203744 is about 33737.2752901001. The cubic root of 1138203744 is about 1044.0949694144.

The spelling of 1138203744 in words is "one billion, one hundred thirty-eight million, two hundred three thousand, seven hundred forty-four".