12470220 has 96 divisors (see below), whose sum is σ = 44352000. Its totient is φ = 2849472.

The previous prime is 12470219. The next prime is 12470243. The reversal of 12470220 is 2207421.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12470193 and 12470202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2131 + ... + 5429.

It is an arithmetic number, because the mean of its divisors is an integer number (462000).

Almost surely, 2^12470220 is an apocalyptic number.

12470220 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 12470220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22176000).

12470220 is an abundant number, since it is smaller than the sum of its proper divisors (31881780).

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

12470220 is a wasteful number, since it uses less digits than its factorization.

12470220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3324 (or 3316 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 12470220 is about 3531.3198665655. The cubic root of 12470220 is about 231.8949931056.

Adding to 12470220 its reverse (2207421), we get a palindrome (14677641).

The spelling of 12470220 in words is "twelve million, four hundred seventy thousand, two hundred twenty".