1028740468 has 24 divisors (see below), whose sum is σ = 2058896000. Its totient is φ = 440585568.

The previous prime is 1028740457. The next prime is 1028740483. The reversal of 1028740468 is 8640478201.

It is a self number, because there is not a number n which added to its sum of digits gives 1028740468.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31513 + ... + 55231.

Almost surely, 2^1028740468 is an apocalyptic number.

It is an amenable number.

1028740468 is an abundant number, since it is smaller than the sum of its proper divisors (1030155532).

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

1028740468 is a wasteful number, since it uses less digits than its factorization.

1028740468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25279 (or 25277 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 40.

The square root of 1028740468 is about 32073.9842863340. The cubic root of 1028740468 is about 1009.4898145465.

The spelling of 1028740468 in words is "one billion, twenty-eight million, seven hundred forty thousand, four hundred sixty-eight".