1798849728 has 112 divisors (see below), whose sum is σ = 5695147360. Its totient is φ = 553485312.

The previous prime is 1798849709. The next prime is 1798849739. The reversal of 1798849728 is 8279488971.

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, 17575 + ... + 62502.

It is an arithmetic number, because the mean of its divisors is an integer number (50849530).

Almost surely, 2^1798849728 is an apocalyptic number.

1798849728 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1798849728 is an abundant number, since it is smaller than the sum of its proper divisors (3896297632).

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

1798849728 is a wasteful number, since it uses less digits than its factorization.

1798849728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80111 (or 80095 counting only the distinct ones).

The product of its digits is 16257024, while the sum is 63.

The square root of 1798849728 is about 42412.8486192569. The cubic root of 1798849728 is about 1216.1812258753.

The spelling of 1798849728 in words is "one billion, seven hundred ninety-eight million, eight hundred forty-nine thousand, seven hundred twenty-eight".