18345376 has 24 divisors (see below), whose sum is σ = 41277600. Its totient is φ = 7862208.

The previous prime is 18345373. The next prime is 18345389. The reversal of 18345376 is 67354381.

It is not an unprimeable number, because it can be changed into a prime (18345373) 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 3 ways as a sum of consecutive naturals, for example, 40726 + ... + 41173.

It is an arithmetic number, because the mean of its divisors is an integer number (1719900).

Almost surely, 2^18345376 is an apocalyptic number.

18345376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18345376 is an abundant number, since it is smaller than the sum of its proper divisors (22932224).

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

18345376 is an equidigital number, since it uses as much as digits as its factorization.

18345376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81916 (or 81908 counting only the distinct ones).

The product of its digits is 60480, while the sum is 37.

The square root of 18345376 is about 4283.1502425201. The cubic root of 18345376 is about 263.7397189826.

It can be divided in two parts, 18345 and 376, that added together give a triangular number (18721 = T₁₉₃).

The spelling of 18345376 in words is "eighteen million, three hundred forty-five thousand, three hundred seventy-six".