1812734218 has 8 divisors (see below), whose sum is σ = 2730479040. Its totient is φ = 902574540.

The previous prime is 1812734137. The next prime is 1812734243. The reversal of 1812734218 is 8124372181.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 1895688 + ... + 1896643.

It is an arithmetic number, because the mean of its divisors is an integer number (341309880).

Almost surely, 2^1812734218 is an apocalyptic number.

1812734218 is a deficient number, since it is larger than the sum of its proper divisors (917744822).

1812734218 is a wasteful number, since it uses less digits than its factorization.

1812734218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3792572.

The product of its digits is 21504, while the sum is 37.

The square root of 1812734218 is about 42576.2165768637. The cubic root of 1812734218 is about 1219.3022566703.

The spelling of 1812734218 in words is "one billion, eight hundred twelve million, seven hundred thirty-four thousand, two hundred eighteen".