12448220 has 24 divisors (see below), whose sum is σ = 26209008. Its totient is φ = 4966400.

The previous prime is 12448213. The next prime is 12448237. The reversal of 12448220 is 2284421.

It is a happy number.

It is a congruent number.

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, 12335 + ... + 13305.

It is an arithmetic number, because the mean of its divisors is an integer number (1092042).

Almost surely, 2^12448220 is an apocalyptic number.

12448220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12448220 is an abundant number, since it is smaller than the sum of its proper divisors (13760788).

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

12448220 is a wasteful number, since it uses less digits than its factorization.

12448220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1621 (or 1619 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 12448220 is about 3528.2035088696. The cubic root of 12448220 is about 231.7585428818.

The spelling of 12448220 in words is "twelve million, four hundred forty-eight thousand, two hundred twenty".