1816734012 has 12 divisors (see below), whose sum is σ = 4239046056. Its totient is φ = 605578000.

The previous prime is 1816733999. The next prime is 1816734071. The reversal of 1816734012 is 2104376181.

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

It is a super-2 number, since 2×1816734012² = 6601044940715232288, which contains 22 as substring.

It is a congruent number.

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, 75697239 + ... + 75697262.

It is an arithmetic number, because the mean of its divisors is an integer number (353253838).

Almost surely, 2^1816734012 is an apocalyptic number.

1816734012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1816734012 is an abundant number, since it is smaller than the sum of its proper divisors (2422312044).

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

1816734012 is a wasteful number, since it uses less digits than its factorization.

1816734012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151394508 (or 151394506 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 1816734012 is about 42623.1628577702. The cubic root of 1816734012 is about 1220.1983937862.

The spelling of 1816734012 in words is "one billion, eight hundred sixteen million, seven hundred thirty-four thousand, twelve".