1030303728 has 60 divisors (see below), whose sum is σ = 3035186440. Its totient is φ = 325358208.

The previous prime is 1030303721. The next prime is 1030303777. The reversal of 1030303728 is 8273030301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030303721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 185551 + ... + 191022.

Almost surely, 2^1030303728 is an apocalyptic number.

1030303728 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1030303728 is an abundant number, since it is smaller than the sum of its proper divisors (2004882712).

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

1030303728 is a wasteful number, since it uses less digits than its factorization.

1030303728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376606 (or 376597 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 1030303728 is about 32098.3446302142. The cubic root of 1030303728 is about 1010.0008914151. Note that the first 3 decimals are identical.

The spelling of 1030303728 in words is "one billion, thirty million, three hundred three thousand, seven hundred twenty-eight".