1078821744 has 160 divisors (see below), whose sum is σ = 3742093824. Its totient is φ = 258647040.

The previous prime is 1078821743. The next prime is 1078821769. The reversal of 1078821744 is 4471288701.

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

It is a junction number, because it is equal to n+sod(n) for n = 1078821696 and 1078821705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1078821743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36822 + ... + 59274.

Almost surely, 2^1078821744 is an apocalyptic number.

1078821744 is a gapful number since it is divisible by the number (14) 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 1078821744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1871046912).

1078821744 is an abundant number, since it is smaller than the sum of its proper divisors (2663272080).

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

1078821744 is a wasteful number, since it uses less digits than its factorization.

1078821744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22495 (or 22489 counting only the distinct ones).

The product of its (nonzero) digits is 100352, while the sum is 42.

The square root of 1078821744 is about 32845.4219641033. The cubic root of 1078821744 is about 1025.6123230875.

The spelling of 1078821744 in words is "one billion, seventy-eight million, eight hundred twenty-one thousand, seven hundred forty-four".