1078589980 has 96 divisors (see below), whose sum is σ = 2492517888. Its totient is φ = 389664000.

The previous prime is 1078589977. The next prime is 1078590013. The reversal of 1078589980 is 899858701.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 3258415 + ... + 3258745.

It is an arithmetic number, because the mean of its divisors is an integer number (25963728).

Almost surely, 2^1078589980 is an apocalyptic number.

1078589980 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 1078589980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1246258944).

1078589980 is an abundant number, since it is smaller than the sum of its proper divisors (1413927908).

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

1078589980 is a wasteful number, since it uses less digits than its factorization.

1078589980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587 (or 585 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 55.

The square root of 1078589980 is about 32841.8936725640. The cubic root of 1078589980 is about 1025.5388734993.

The spelling of 1078589980 in words is "one billion, seventy-eight million, five hundred eighty-nine thousand, nine hundred eighty".