1812464918 has 16 divisors (see below), whose sum is σ = 2969485056. Its totient is φ = 822838440.

The previous prime is 1812464917. The next prime is 1812464923. The reversal of 1812464918 is 8194642181.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1812464917) 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, 31946 + ... + 68157.

It is an arithmetic number, because the mean of its divisors is an integer number (185592816).

Almost surely, 2^1812464918 is an apocalyptic number.

1812464918 is a deficient number, since it is larger than the sum of its proper divisors (1157020138).

1812464918 is a wasteful number, since it uses less digits than its factorization.

1812464918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100939.

The product of its digits is 110592, while the sum is 44.

The square root of 1812464918 is about 42573.0538956275. The cubic root of 1812464918 is about 1219.2418737864.

The spelling of 1812464918 in words is "one billion, eight hundred twelve million, four hundred sixty-four thousand, nine hundred eighteen".