1028543670 has 384 divisors, whose sum is σ = 3622993920. Its totient is φ = 203575680.

The previous prime is 1028543669. The next prime is 1028543687. The reversal of 1028543670 is 763458201.

1028543670 is a `hidden beast` number, since 10 + 285 + 4 + 367 + 0 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 4303411 + ... + 4303649.

It is an arithmetic number, because the mean of its divisors is an integer number (9434880).

Almost surely, 2^1028543670 is an apocalyptic number.

1028543670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1028543670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1811496960).

1028543670 is an abundant number, since it is smaller than the sum of its proper divisors (2594450250).

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

1028543670 is a wasteful number, since it uses less digits than its factorization.

1028543670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302 (or 290 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 1028543670 is about 32070.9162638051. The cubic root of 1028543670 is about 1009.4254386576.

The spelling of 1028543670 in words is "one billion, twenty-eight million, five hundred forty-three thousand, six hundred seventy".