1798199520 has 384 divisors, whose sum is σ = 6655219200. Its totient is φ = 404103168.

The previous prime is 1798199503. The next prime is 1798199527. The reversal of 1798199520 is 259918971.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1798199527) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3437979 + ... + 3438501.

It is an arithmetic number, because the mean of its divisors is an integer number (17331300).

Almost surely, 2^1798199520 is an apocalyptic number.

1798199520 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 1798199520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3327609600).

1798199520 is an abundant number, since it is smaller than the sum of its proper divisors (4857019680).

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

1798199520 is a wasteful number, since it uses less digits than its factorization.

1798199520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602 (or 594 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 51.

The square root of 1798199520 is about 42405.1827021179. The cubic root of 1798199520 is about 1216.0346755463.

The spelling of 1798199520 in words is "one billion, seven hundred ninety-eight million, one hundred ninety-nine thousand, five hundred twenty".