1078534320 has 80 divisors (see below), whose sum is σ = 3374784000. Its totient is φ = 284914432.

The previous prime is 1078534279. The next prime is 1078534363. The reversal of 1078534320 is 234358701.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4681 + ... + 46679.

It is an arithmetic number, because the mean of its divisors is an integer number (42184800).

Almost surely, 2^1078534320 is an apocalyptic number.

1078534320 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 1078534320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1687392000).

1078534320 is an abundant number, since it is smaller than the sum of its proper divisors (2296249680).

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

1078534320 is a wasteful number, since it uses less digits than its factorization.

1078534320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42122 (or 42116 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 1078534320 is about 32841.0462683514. The cubic root of 1078534320 is about 1025.5212324196.

The spelling of 1078534320 in words is "one billion, seventy-eight million, five hundred thirty-four thousand, three hundred twenty".