1029798648 has 48 divisors (see below), whose sum is σ = 2791292400. Its totient is φ = 342988800.

The previous prime is 1029798617. The next prime is 1029798673. The reversal of 1029798648 is 8468979201.

It is a junction number, because it is equal to n+sod(n) for n = 1029798594 and 1029798603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96373 + ... + 106523.

It is an arithmetic number, because the mean of its divisors is an integer number (58151925).

Almost surely, 2^1029798648 is an apocalyptic number.

1029798648 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1029798648 is an abundant number, since it is smaller than the sum of its proper divisors (1761493752).

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

1029798648 is a wasteful number, since it uses less digits than its factorization.

1029798648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11572 (or 11565 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The square root of 1029798648 is about 32090.4759702937. The cubic root of 1029798648 is about 1009.8358220869.

The spelling of 1029798648 in words is "one billion, twenty-nine million, seven hundred ninety-eight thousand, six hundred forty-eight".