1078980280 has 32 divisors (see below), whose sum is σ = 2774521440. Its totient is φ = 369936000.

The previous prime is 1078980247. The next prime is 1078980281. The reversal of 1078980280 is 820898701.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1078980281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1926471 + ... + 1927030.

It is an arithmetic number, because the mean of its divisors is an integer number (86703795).

Almost surely, 2^1078980280 is an apocalyptic number.

1078980280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1078980280 is an abundant number, since it is smaller than the sum of its proper divisors (1695541160).

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

1078980280 is a wasteful number, since it uses less digits than its factorization.

1078980280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3853519 (or 3853515 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 43.

The square root of 1078980280 is about 32847.8352406974. The cubic root of 1078980280 is about 1025.6625595336.

The spelling of 1078980280 in words is "one billion, seventy-eight million, nine hundred eighty thousand, two hundred eighty".