1028125320 has 64 divisors (see below), whose sum is σ = 3265816320. Its totient is φ = 258038784.

The previous prime is 1028125279. The next prime is 1028125361. The reversal of 1028125320 is 235218201.

It is an interprime number because it is at equal distance from previous prime (1028125279) and next prime (1028125361).

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 249952 + ... + 254031.

It is an arithmetic number, because the mean of its divisors is an integer number (51028380).

Almost surely, 2^1028125320 is an apocalyptic number.

1028125320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1028125320 is an abundant number, since it is smaller than the sum of its proper divisors (2237691000).

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

1028125320 is a wasteful number, since it uses less digits than its factorization.

1028125320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504014 (or 504010 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 1028125320 is about 32064.3933359108. The cubic root of 1028125320 is about 1009.2885621489.

The spelling of 1028125320 in words is "one billion, twenty-eight million, one hundred twenty-five thousand, three hundred twenty".