18346412 has 12 divisors (see below), whose sum is σ = 36692880. Its totient is φ = 7862736.

The previous prime is 18346411. The next prime is 18346441. The reversal of 18346412 is 21464381.

18346412 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (18346411) 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, 327587 + ... + 327642.

It is an arithmetic number, because the mean of its divisors is an integer number (3057740).

Almost surely, 2^18346412 is an apocalyptic number.

It is an amenable number.

18346412 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.

18346412 is a wasteful number, since it uses less digits than its factorization.

18346412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655240 (or 655238 counting only the distinct ones).

The product of its digits is 4608, while the sum is 29.

The square root of 18346412 is about 4283.2711798344. The cubic root of 18346412 is about 263.7446835253.

The spelling of 18346412 in words is "eighteen million, three hundred forty-six thousand, four hundred twelve".