1028443340 has 48 divisors (see below), whose sum is σ = 2200413600. Its totient is φ = 403702272.

The previous prime is 1028443319. The next prime is 1028443363. The reversal of 1028443340 is 433448201.

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, 231056 + ... + 235464.

It is an arithmetic number, because the mean of its divisors is an integer number (45841950).

Almost surely, 2^1028443340 is an apocalyptic number.

1028443340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1028443340 is an abundant number, since it is smaller than the sum of its proper divisors (1171970260).

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

1028443340 is a wasteful number, since it uses less digits than its factorization.

1028443340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4634 (or 4632 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 1028443340 is about 32069.3520358613. The cubic root of 1028443340 is about 1009.3926158907.

The spelling of 1028443340 in words is "one billion, twenty-eight million, four hundred forty-three thousand, three hundred forty".