1078931220 has 48 divisors (see below), whose sum is σ = 3023213760. Its totient is φ = 287504896.

The previous prime is 1078931179. The next prime is 1078931233. The reversal of 1078931220 is 221398701.

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 15 ways as a sum of consecutive naturals, for example, 87391 + ... + 98969.

It is an arithmetic number, because the mean of its divisors is an integer number (62983620).

Almost surely, 2^1078931220 is an apocalyptic number.

1078931220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1078931220 is an abundant number, since it is smaller than the sum of its proper divisors (1944282540).

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

1078931220 is a wasteful number, since it uses less digits than its factorization.

1078931220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13144 (or 13142 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 1078931220 is about 32847.0884554476. The cubic root of 1078931220 is about 1025.6470140632.

The spelling of 1078931220 in words is "one billion, seventy-eight million, nine hundred thirty-one thousand, two hundred twenty".