1029455728 has 20 divisors (see below), whose sum is σ = 2279509360. Its totient is φ = 441195264.

The previous prime is 1029455683. The next prime is 1029455741. The reversal of 1029455728 is 8275549201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4595673 + ... + 4595896.

It is an arithmetic number, because the mean of its divisors is an integer number (113975468).

Almost surely, 2^1029455728 is an apocalyptic number.

It is an amenable number.

1029455728 is an abundant number, since it is smaller than the sum of its proper divisors (1250053632).

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

1029455728 is an equidigital number, since it uses as much as digits as its factorization.

1029455728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9191584 (or 9191578 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 43.

The square root of 1029455728 is about 32085.1325071286. The cubic root of 1029455728 is about 1009.7237188306.

The spelling of 1029455728 in words is "one billion, twenty-nine million, four hundred fifty-five thousand, seven hundred twenty-eight".