1816306323 has 16 divisors (see below), whose sum is σ = 2609102496. Its totient is φ = 1117267200.

The previous prime is 1816306319. The next prime is 1816306351. The reversal of 1816306323 is 3236036181.

It is not a de Polignac number, because 1816306323 - 2² = 1816306319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1816304323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103273 + ... + 119573.

It is an arithmetic number, because the mean of its divisors is an integer number (163068906).

Almost surely, 2^1816306323 is an apocalyptic number.

1816306323 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1816306323 is a deficient number, since it is larger than the sum of its proper divisors (792796173).

1816306323 is a wasteful number, since it uses less digits than its factorization.

1816306323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19174.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 1816306323 is about 42618.1454664560. The cubic root of 1816306323 is about 1220.1026346961.

The spelling of 1816306323 in words is "one billion, eight hundred sixteen million, three hundred six thousand, three hundred twenty-three".