1798438255 has 16 divisors (see below), whose sum is σ = 2273914080. Its totient is φ = 1361705472.

The previous prime is 1798438249. The next prime is 1798438303. The reversal of 1798438255 is 5528348971.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1798438255 - 2¹¹ = 1798436207 is a prime.

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, 95587 + ... + 112843.

It is an arithmetic number, because the mean of its divisors is an integer number (142119630).

Almost surely, 2^1798438255 is an apocalyptic number.

1798438255 is a deficient number, since it is larger than the sum of its proper divisors (475475825).

1798438255 is a wasteful number, since it uses less digits than its factorization.

1798438255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18378.

The product of its digits is 2419200, while the sum is 52.

The square root of 1798438255 is about 42407.9975358422. The cubic root of 1798438255 is about 1216.0884881124.

The spelling of 1798438255 in words is "one billion, seven hundred ninety-eight million, four hundred thirty-eight thousand, two hundred fifty-five".