4185678 has 48 divisors (see below), whose sum is σ = 10177920. Its totient is φ = 1142064.

The previous prime is 4185673. The next prime is 4185683. The reversal of 4185678 is 8765814.

It is an interprime number because it is at equal distance from previous prime (4185673) and next prime (4185683).

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4185673) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6453 + ... + 7071.

It is an arithmetic number, because the mean of its divisors is an integer number (212040).

Almost surely, 2^4185678 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4185678, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5088960).

4185678 is an abundant number, since it is smaller than the sum of its proper divisors (5992242).

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

4185678 is a wasteful number, since it uses less digits than its factorization.

4185678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661 (or 654 counting only the distinct ones).

The product of its digits is 53760, while the sum is 39.

The square root of 4185678 is about 2045.8929590768. The cubic root of 4185678 is about 161.1592626938.

The spelling of 4185678 in words is "four million, one hundred eighty-five thousand, six hundred seventy-eight".