1798318842 has 16 divisors (see below), whose sum is σ = 3629635680. Its totient is φ = 593939952.

The previous prime is 1798318829. The next prime is 1798318843. The reversal of 1798318842 is 2488138971.

It is not an unprimeable number, because it can be changed into a prime (1798318843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1374208 + ... + 1375515.

It is an arithmetic number, because the mean of its divisors is an integer number (226852230).

Almost surely, 2^1798318842 is an apocalyptic number.

1798318842 is an abundant number, since it is smaller than the sum of its proper divisors (1831316838).

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

1798318842 is a wasteful number, since it uses less digits than its factorization.

1798318842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2749837.

The product of its digits is 774144, while the sum is 51.

The square root of 1798318842 is about 42406.5896058620. The cubic root of 1798318842 is about 1216.0615721686.

The spelling of 1798318842 in words is "one billion, seven hundred ninety-eight million, three hundred eighteen thousand, eight hundred forty-two".