1798503868 has 48 divisors (see below), whose sum is σ = 3694521600. Its totient is φ = 749992320.

The previous prime is 1798503857. The next prime is 1798503871. The reversal of 1798503868 is 8683058971.

It is a super-2 number, since 2×1798503868² = 6469232326421922848, which contains 22 as substring.

It is a congruent number.

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, 479143 + ... + 482881.

It is an arithmetic number, because the mean of its divisors is an integer number (76969200).

Almost surely, 2^1798503868 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1798503868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1847260800).

1798503868 is an abundant number, since it is smaller than the sum of its proper divisors (1896017732).

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

1798503868 is a wasteful number, since it uses less digits than its factorization.

1798503868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4210 (or 4208 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 55.

The square root of 1798503868 is about 42408.7711210782. The cubic root of 1798503868 is about 1216.1032769147.

The spelling of 1798503868 in words is "one billion, seven hundred ninety-eight million, five hundred three thousand, eight hundred sixty-eight".