1798979200 has 48 divisors (see below), whose sum is σ = 4444048710. Its totient is φ = 719590400.

The previous prime is 1798979179. The next prime is 1798979209. The reversal of 1798979200 is 29798971.

It can be written as a sum of positive squares in 3 ways, for example, as 1431260224 + 367718976 = 37832^2 + 19176^2 .

It is not an unprimeable number, because it can be changed into a prime (1798979209) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 277891 + ... + 284290.

Almost surely, 2^1798979200 is an apocalyptic number.

1798979200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1798979200 is an abundant number, since it is smaller than the sum of its proper divisors (2645069510).

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

1798979200 is an equidigital number, since it uses as much as digits as its factorization.

1798979200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562205 (or 562188 counting only the distinct ones).

The product of its (nonzero) digits is 571536, while the sum is 52.

The square root of 1798979200 is about 42414.3749217173. The cubic root of 1798979200 is about 1216.2104033427.

The spelling of 1798979200 in words is "one billion, seven hundred ninety-eight million, nine hundred seventy-nine thousand, two hundred".