1078782660 has 36 divisors (see below), whose sum is σ = 3272307948. Its totient is φ = 287675328.

The previous prime is 1078782659. The next prime is 1078782697. The reversal of 1078782660 is 662878701.

It can be written as a sum of positive squares in 2 ways, for example, as 326597184 + 752185476 = 18072^2 + 27426^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2996439 + ... + 2996798.

It is an arithmetic number, because the mean of its divisors is an integer number (90897443).

Almost surely, 2^1078782660 is an apocalyptic number.

1078782660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1078782660 is an abundant number, since it is smaller than the sum of its proper divisors (2193525288).

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

1078782660 is a wasteful number, since it uses less digits than its factorization.

1078782660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5993252 (or 5993247 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 1078782660 is about 32844.8269899538. The cubic root of 1078782660 is about 1025.5999375022.

The spelling of 1078782660 in words is "one billion, seventy-eight million, seven hundred eighty-two thousand, six hundred sixty".