1798307840 has 168 divisors, whose sum is σ = 5033162400. Its totient is φ = 616562688.

The previous prime is 1798307837. The next prime is 1798307873. The reversal of 1798307840 is 487038971.

It is a super-2 number, since 2×1798307840² = 6467822174810931200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256901117 + ... + 256901123.

It is an arithmetic number, because the mean of its divisors is an integer number (29959300).

Almost surely, 2^1798307840 is an apocalyptic number.

1798307840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1798307840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2516581200).

1798307840 is an abundant number, since it is smaller than the sum of its proper divisors (3234854560).

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

1798307840 is an frugal number, since it uses more digits than its factorization.

1798307840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66 (or 14 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 47.

The square root of 1798307840 is about 42406.4598852580. The cubic root of 1798307840 is about 1216.0590922345.

The spelling of 1798307840 in words is "one billion, seven hundred ninety-eight million, three hundred seven thousand, eight hundred forty".