1812464916 has 12 divisors (see below), whose sum is σ = 4229084832. Its totient is φ = 604154968.

The previous prime is 1812464867. The next prime is 1812464917. The reversal of 1812464916 is 6194642181.

It is a tau number, because it is divible by the number of its divisors (12).

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 3 ways as a sum of consecutive naturals, for example, 75519360 + ... + 75519383.

It is an arithmetic number, because the mean of its divisors is an integer number (352423736).

Almost surely, 2^1812464916 is an apocalyptic number.

It is an amenable number.

1812464916 is an abundant number, since it is smaller than the sum of its proper divisors (2416619916).

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

1812464916 is a wasteful number, since it uses less digits than its factorization.

1812464916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151038750 (or 151038748 counting only the distinct ones).

The product of its digits is 82944, while the sum is 42.

The square root of 1812464916 is about 42573.0538721384. The cubic root of 1812464916 is about 1219.2418733380.

The spelling of 1812464916 in words is "one billion, eight hundred twelve million, four hundred sixty-four thousand, nine hundred sixteen".