1139444100 has 108 divisors (see below), whose sum is σ = 3654707056. Its totient is φ = 296775360.

The previous prime is 1139444083. The next prime is 1139444107. The reversal of 1139444100 is 14449311.

1139444100 is a `hidden beast` number, since 113 + 9 + 444 + 100 = 666.

It is not an unprimeable number, because it can be changed into a prime (1139444107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 23979 + ... + 53421.

Almost surely, 2^1139444100 is an apocalyptic number.

1139444100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1139444100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1827353528).

1139444100 is an abundant number, since it is smaller than the sum of its proper divisors (2515262956).

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

1139444100 is a wasteful number, since it uses less digits than its factorization.

1139444100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29506 (or 29496 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 1139444100 is about 33755.6528599285. The cubic root of 1139444100 is about 1044.4740987590.

The spelling of 1139444100 in words is "one billion, one hundred thirty-nine million, four hundred forty-four thousand, one hundred".