1128237738 has 8 divisors (see below), whose sum is σ = 2256475488. Its totient is φ = 376079244.

The previous prime is 1128237683. The next prime is 1128237757. The reversal of 1128237738 is 8377328211.

It is a sphenic number, since it is the product of 3 distinct primes.

1128237738 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 1128237738.

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, 94019806 + ... + 94019817.

It is an arithmetic number, because the mean of its divisors is an integer number (282059436).

Almost surely, 2^1128237738 is an apocalyptic number.

1128237738 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1128237738 is a wasteful number, since it uses less digits than its factorization.

1128237738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188039628.

The product of its digits is 112896, while the sum is 42.

The square root of 1128237738 is about 33589.2503339982. The cubic root of 1128237738 is about 1041.0386990645.

The spelling of 1128237738 in words is "one billion, one hundred twenty-eight million, two hundred thirty-seven thousand, seven hundred thirty-eight".