18461346 has 8 divisors (see below), whose sum is σ = 36922704. Its totient is φ = 6153780.

The previous prime is 18461329. The next prime is 18461347. The reversal of 18461346 is 64316481.

It is a sphenic number, since it is the product of 3 distinct primes.

18461346 is an admirable number.

It is a super-2 number, since 2×18461346² = 681642592263432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18461347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1538440 + ... + 1538451.

It is an arithmetic number, because the mean of its divisors is an integer number (4615338).

Almost surely, 2^18461346 is an apocalyptic number.

18461346 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

18461346 is a wasteful number, since it uses less digits than its factorization.

18461346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3076896.

The product of its digits is 13824, while the sum is 33.

The square root of 18461346 is about 4296.6668476855. Note that the first 3 decimals coincide. The cubic root of 18461346 is about 264.2942941734.

The spelling of 18461346 in words is "eighteen million, four hundred sixty-one thousand, three hundred forty-six".