12385620 has 144 divisors (see below), whose sum is σ = 41583360. Its totient is φ = 2965248.

The previous prime is 12385619. The next prime is 12385621. The reversal of 12385620 is 2658321.

12385620 = T₅₂₀ + T₅₂₁ + ... + T₅₉₈.

12385620 is a `hidden beast` number, since 1 + 2 + 38 + 5 + 620 = 666.

It is an interprime number because it is at equal distance from previous prime (12385619) and next prime (12385621).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12385621) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 156741 + ... + 156819.

Almost surely, 2^12385620 is an apocalyptic number.

12385620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12385620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20791680).

12385620 is an abundant number, since it is smaller than the sum of its proper divisors (29197740).

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

12385620 is a wasteful number, since it uses less digits than its factorization.

12385620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174 (or 169 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 12385620 is about 3519.3209572302. The cubic root of 12385620 is about 231.3693982885.

The spelling of 12385620 in words is "twelve million, three hundred eighty-five thousand, six hundred twenty".