12385420 has 24 divisors (see below), whose sum is σ = 26135424. Its totient is φ = 4930176.

The previous prime is 12385391. The next prime is 12385433. The reversal of 12385420 is 2458321.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3072 + ... + 5848.

It is an arithmetic number, because the mean of its divisors is an integer number (1088976).

Almost surely, 2^12385420 is an apocalyptic number.

12385420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12385420 is an abundant number, since it is smaller than the sum of its proper divisors (13750004).

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

12385420 is a wasteful number, since it uses less digits than its factorization.

12385420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3009 (or 3007 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 12385420 is about 3519.2925425432. The cubic root of 12385420 is about 231.3681529160.

The spelling of 12385420 in words is "twelve million, three hundred eighty-five thousand, four hundred twenty".