1028855486 has 8 divisors (see below), whose sum is σ = 1560623760. Its totient is φ = 508647568.

The previous prime is 1028855483. The next prime is 1028855501. The reversal of 1028855486 is 6845588201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1028855486² = 2117087222144592392, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1028855486.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1028855483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2889866 + ... + 2890221.

It is an arithmetic number, because the mean of its divisors is an integer number (195077970).

Almost surely, 2^1028855486 is an apocalyptic number.

1028855486 is a deficient number, since it is larger than the sum of its proper divisors (531768274).

1028855486 is an equidigital number, since it uses as much as digits as its factorization.

1028855486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5780178.

The product of its (nonzero) digits is 614400, while the sum is 47.

The square root of 1028855486 is about 32075.7772470130. Note that the first 3 decimals coincide. The cubic root of 1028855486 is about 1009.5274350401.

It can be divided in two parts, 102 and 8855486, that added together give a palindrome (8855588).

The spelling of 1028855486 in words is "one billion, twenty-eight million, eight hundred fifty-five thousand, four hundred eighty-six".