1128480 has 48 divisors (see below), whose sum is σ = 3556224. Its totient is φ = 300800.

The previous prime is 1128451. The next prime is 1128497. The reversal of 1128480 is 848211.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×1128480² = 2546934220800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1128480.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 696 + ... + 1655.

It is an arithmetic number, because the mean of its divisors is an integer number (74088).

2^1128480 is an apocalyptic number.

1128480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1128480 is an abundant number, since it is smaller than the sum of its proper divisors (2427744).

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

1128480 is a wasteful number, since it uses less digits than its factorization.

1128480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2369 (or 2361 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 24.

The square root of 1128480 is about 1062.2993928267. The cubic root of 1128480 is about 104.1113206431. Note that the first 3 decimals are identical.

The spelling of 1128480 in words is "one million, one hundred twenty-eight thousand, four hundred eighty".