1028236818 has 32 divisors (see below), whose sum is σ = 2431301760. Its totient is φ = 283651200.

The previous prime is 1028236787. The next prime is 1028236819. The reversal of 1028236818 is 8186328201.

It is not an unprimeable number, because it can be changed into a prime (1028236819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 420883 + ... + 423318.

It is an arithmetic number, because the mean of its divisors is an integer number (75978180).

Almost surely, 2^1028236818 is an apocalyptic number.

1028236818 is an abundant number, since it is smaller than the sum of its proper divisors (1403064942).

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

1028236818 is a wasteful number, since it uses less digits than its factorization.

1028236818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844242.

The product of its (nonzero) digits is 36864, while the sum is 39.

The square root of 1028236818 is about 32066.1319463386. The cubic root of 1028236818 is about 1009.3250458947.

The spelling of 1028236818 in words is "one billion, twenty-eight million, two hundred thirty-six thousand, eight hundred eighteen".