1855130798 has 4 divisors (see below), whose sum is σ = 2782696200. Its totient is φ = 927565398.

The previous prime is 1855130741. The next prime is 1855130801. The reversal of 1855130798 is 8970315581.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 463782698 + ... + 463782701.

It is an arithmetic number, because the mean of its divisors is an integer number (695674050).

Almost surely, 2^1855130798 is an apocalyptic number.

1855130798 is a deficient number, since it is larger than the sum of its proper divisors (927565402).

1855130798 is an equidigital number, since it uses as much as digits as its factorization.

1855130798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927565401.

The product of its (nonzero) digits is 302400, while the sum is 47.

The square root of 1855130798 is about 43071.2293532469. The cubic root of 1855130798 is about 1228.7348566454.

The spelling of 1855130798 in words is "one billion, eight hundred fifty-five million, one hundred thirty thousand, seven hundred ninety-eight".