1088979780 has 96 divisors (see below), whose sum is σ = 3597189120. Its totient is φ = 240877440.

The previous prime is 1088979733. The next prime is 1088979791. The reversal of 1088979780 is 879798801.

It is a super-2 number, since 2×1088979780² = 2371753922497696800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1088979780.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28800 + ... + 54839.

It is an arithmetic number, because the mean of its divisors is an integer number (37470720).

Almost surely, 2^1088979780 is an apocalyptic number.

1088979780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1088979780 is an abundant number, since it is smaller than the sum of its proper divisors (2508209340).

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

1088979780 is a wasteful number, since it uses less digits than its factorization.

1088979780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83689 (or 83687 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 57.

The square root of 1088979780 is about 32999.6936349415. The cubic root of 1088979780 is about 1028.8212801873.

The spelling of 1088979780 in words is "one billion, eighty-eight million, nine hundred seventy-nine thousand, seven hundred eighty".