1028774430 has 24 divisors (see below), whose sum is σ = 2674813752. Its totient is φ = 274339824.

The previous prime is 1028774389. The next prime is 1028774443. The reversal of 1028774430 is 344778201.

It is a happy number.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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 11 ways as a sum of consecutive naturals, for example, 5715324 + ... + 5715503.

It is an arithmetic number, because the mean of its divisors is an integer number (111450573).

Almost surely, 2^1028774430 is an apocalyptic number.

1028774430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1028774430 is an abundant number, since it is smaller than the sum of its proper divisors (1646039322).

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

1028774430 is a wasteful number, since it uses less digits than its factorization.

1028774430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11430840 (or 11430837 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 1028774430 is about 32074.5137141625. The cubic root of 1028774430 is about 1009.5009232491.

The spelling of 1028774430 in words is "one billion, twenty-eight million, seven hundred seventy-four thousand, four hundred thirty".