1812255848 has 16 divisors (see below), whose sum is σ = 3659362980. Its totient is φ = 836425728.

The previous prime is 1812255833. The next prime is 1812255857. The reversal of 1812255848 is 8485522181.

It can be written as a sum of positive squares in 2 ways, for example, as 1743730564 + 68525284 = 41758^2 + 8278^2 .

It is a super-2 number, since 2×1812255848² = 6568542517220398208, which contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1812255799 and 1812255808.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8712665 + ... + 8712872.

Almost surely, 2^1812255848 is an apocalyptic number.

It is an amenable number.

1812255848 is an abundant number, since it is smaller than the sum of its proper divisors (1847107132).

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

1812255848 is a wasteful number, since it uses less digits than its factorization.

1812255848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17425556 (or 17425552 counting only the distinct ones).

The product of its digits is 204800, while the sum is 44.

The square root of 1812255848 is about 42570.5983984252. The cubic root of 1812255848 is about 1219.1949916467.

The spelling of 1812255848 in words is "one billion, eight hundred twelve million, two hundred fifty-five thousand, eight hundred forty-eight".