18486342 has 48 divisors (see below), whose sum is σ = 47773440. Its totient is φ = 5051376.

The previous prime is 18486331. The next prime is 18486353. The reversal of 18486342 is 24368481.

18486342 is a `hidden beast` number, since 18 + 4 + 8 + 634 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (18486331) and next prime (18486353).

It is a junction number, because it is equal to n+sod(n) for n = 18486297 and 18486306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 292 + ... + 6087.

It is an arithmetic number, because the mean of its divisors is an integer number (995280).

Almost surely, 2^18486342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18486342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23886720).

18486342 is an abundant number, since it is smaller than the sum of its proper divisors (29287098).

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

18486342 is a wasteful number, since it uses less digits than its factorization.

18486342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6417 (or 6414 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 18486342 is about 4299.5746301233. The cubic root of 18486342 is about 264.4135220429.

The spelling of 18486342 in words is "eighteen million, four hundred eighty-six thousand, three hundred forty-two".