1139784480 has 192 divisors, whose sum is σ = 4004985600. Its totient is φ = 302745600.

The previous prime is 1139784427. The next prime is 1139784493. The reversal of 1139784480 is 844879311.

It is a happy number.

1139784480 is a `hidden beast` number, since 1 + 1 + 3 + 97 + 84 + 480 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1896180 + ... + 1896780.

It is an arithmetic number, because the mean of its divisors is an integer number (20859300).

Almost surely, 2^1139784480 is an apocalyptic number.

1139784480 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 1139784480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2002492800).

1139784480 is an abundant number, since it is smaller than the sum of its proper divisors (2865201120).

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

1139784480 is a wasteful number, since it uses less digits than its factorization.

1139784480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1064 (or 1050 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 1139784480 is about 33760.6943056567. The cubic root of 1139784480 is about 1044.5780917789.

The spelling of 1139784480 in words is "one billion, one hundred thirty-nine million, seven hundred eighty-four thousand, four hundred eighty".