1138074448 has 20 divisors (see below), whose sum is σ = 2520022240. Its totient is φ = 487746144.

The previous prime is 1138074437. The next prime is 1138074461. The reversal of 1138074448 is 8444708311.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1138074448.

It is a congruent number.

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, 5080578 + ... + 5080801.

It is an arithmetic number, because the mean of its divisors is an integer number (126001112).

Almost surely, 2^1138074448 is an apocalyptic number.

It is an amenable number.

1138074448 is an abundant number, since it is smaller than the sum of its proper divisors (1381947792).

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

1138074448 is a wasteful number, since it uses less digits than its factorization.

1138074448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10161394 (or 10161388 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 40.

The square root of 1138074448 is about 33735.3590169128. The cubic root of 1138074448 is about 1044.0554327275.

The spelling of 1138074448 in words is "one billion, one hundred thirty-eight million, seventy-four thousand, four hundred forty-eight".