1078115540 has 12 divisors (see below), whose sum is σ = 2264042676. Its totient is φ = 431246208.

The previous prime is 1078115483. The next prime is 1078115579. The reversal of 1078115540 is 455118701.

It can be written as a sum of positive squares in 2 ways, for example, as 619213456 + 458902084 = 24884^2 + 21422^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1078115497 and 1078115506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26952869 + ... + 26952908.

It is an arithmetic number, because the mean of its divisors is an integer number (188670223).

Almost surely, 2^1078115540 is an apocalyptic number.

1078115540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1078115540 is an abundant number, since it is smaller than the sum of its proper divisors (1185927136).

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

1078115540 is a wasteful number, since it uses less digits than its factorization.

1078115540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53905786 (or 53905784 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 32.

The square root of 1078115540 is about 32834.6697866752. The cubic root of 1078115540 is about 1025.3884833201.

The spelling of 1078115540 in words is "one billion, seventy-eight million, one hundred fifteen thousand, five hundred forty".