1123490880 has 84 divisors (see below), whose sum is σ = 3864350412. Its totient is φ = 299596800.

The previous prime is 1123490869. The next prime is 1123490911. The reversal of 1123490880 is 880943211.

It can be written as a sum of positive squares in 2 ways, for example, as 613453824 + 510037056 = 24768^2 + 22584^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

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 11 ways as a sum of consecutive naturals, for example, 192171 + ... + 197930.

Almost surely, 2^1123490880 is an apocalyptic number.

1123490880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1123490880 is an abundant number, since it is smaller than the sum of its proper divisors (2740859532).

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

1123490880 is a wasteful number, since it uses less digits than its factorization.

1123490880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390124 (or 390111 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 1123490880 is about 33518.5154802536. The cubic root of 1123490880 is about 1039.5766521508.

The spelling of 1123490880 in words is "one billion, one hundred twenty-three million, four hundred ninety thousand, eight hundred eighty".