1139229168 has 320 divisors, whose sum is σ = 3873275904. Its totient is φ = 279936000.

The previous prime is 1139229163. The next prime is 1139229181. The reversal of 1139229168 is 8619229311.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1139229163) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6989055 + ... + 6989217.

Almost surely, 2^1139229168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1139229168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1936637952).

1139229168 is an abundant number, since it is smaller than the sum of its proper divisors (2734046736).

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

1139229168 is a wasteful number, since it uses less digits than its factorization.

1139229168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284 (or 278 counting only the distinct ones).

The product of its digits is 46656, while the sum is 42.

The square root of 1139229168 is about 33752.4690652402. The cubic root of 1139229168 is about 1044.4084219892.

The spelling of 1139229168 in words is "one billion, one hundred thirty-nine million, two hundred twenty-nine thousand, one hundred sixty-eight".