1138798292 has 6 divisors (see below), whose sum is σ = 1992897018. Its totient is φ = 569399144.

The previous prime is 1138798291. The next prime is 1138798301. The reversal of 1138798292 is 2928978311.

It can be written as a sum of positive squares in only one way, i.e., 1138792516 + 5776 = 33746^2 + 76^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1138798292.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1138798291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142349783 + ... + 142349790.

It is an arithmetic number, because the mean of its divisors is an integer number (332149503).

Almost surely, 2^1138798292 is an apocalyptic number.

It is an amenable number.

1138798292 is a deficient number, since it is larger than the sum of its proper divisors (854098726).

1138798292 is a wasteful number, since it uses less digits than its factorization.

1138798292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284699577 (or 284699575 counting only the distinct ones).

The product of its digits is 435456, while the sum is 50.

The square root of 1138798292 is about 33746.0855804047. The cubic root of 1138798292 is about 1044.2767343295.

The spelling of 1138798292 in words is "one billion, one hundred thirty-eight million, seven hundred ninety-eight thousand, two hundred ninety-two".