1028480 has 32 divisors (see below), whose sum is σ = 2460240. Its totient is φ = 411136.

The previous prime is 1028479. The next prime is 1028509. The reversal of 1028480 is 848201.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×1028480² = 2115542220800, which contains 22 as substring.

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, 164 + ... + 1443.

2^1028480 is an apocalyptic number.

1028480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1028480 is an abundant number, since it is smaller than the sum of its proper divisors (1431760).

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

1028480 is an equidigital number, since it uses as much as digits as its factorization.

1028480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1626 (or 1614 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 1028480 is about 1014.1400297789. The cubic root of 1028480 is about 100.9404609387.

The spelling of 1028480 in words is "one million, twenty-eight thousand, four hundred eighty".