1151989038 has 48 divisors (see below), whose sum is σ = 2659063680. Its totient is φ = 359394192.

The previous prime is 1151989001. The next prime is 1151989067. The reversal of 1151989038 is 8309891511.

1151989038 is a `hidden beast` number, since 11 + 519 + 8 + 90 + 38 = 666.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1151988984 and 1151989002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8095 + ... + 48677.

It is an arithmetic number, because the mean of its divisors is an integer number (55397160).

Almost surely, 2^1151989038 is an apocalyptic number.

1151989038 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1151989038, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1329531840).

1151989038 is an abundant number, since it is smaller than the sum of its proper divisors (1507074642).

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

1151989038 is a wasteful number, since it uses less digits than its factorization.

1151989038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40693 (or 40690 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 45.

The square root of 1151989038 is about 33940.9640110590. The cubic root of 1151989038 is about 1048.2932326074.

The spelling of 1151989038 in words is "one billion, one hundred fifty-one million, nine hundred eighty-nine thousand, thirty-eight".