12464220 has 48 divisors (see below), whose sum is σ = 35068320. Its totient is φ = 3307776.

The previous prime is 12464197. The next prime is 12464233. The reversal of 12464220 is 2246421.

12464220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17226 + ... + 17934.

It is an arithmetic number, because the mean of its divisors is an integer number (730590).

Almost surely, 2^12464220 is an apocalyptic number.

12464220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12464220 is an abundant number, since it is smaller than the sum of its proper divisors (22604100).

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

12464220 is a wasteful number, since it uses less digits than its factorization.

12464220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1014 (or 1012 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 12464220 is about 3530.4702236388. The cubic root of 12464220 is about 231.8577953345.

The spelling of 12464220 in words is "twelve million, four hundred sixty-four thousand, two hundred twenty".