12741220 has 24 divisors (see below), whose sum is σ = 26913600. Its totient is φ = 5066592.

The previous prime is 12741193. The next prime is 12741233. The reversal of 12741220 is 2214721.

It is a happy 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, 1801 + ... + 5359.

It is an arithmetic number, because the mean of its divisors is an integer number (1121400).

Almost surely, 2^12741220 is an apocalyptic number.

12741220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12741220 is an abundant number, since it is smaller than the sum of its proper divisors (14172380).

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

12741220 is a wasteful number, since it uses less digits than its factorization.

12741220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3747 (or 3745 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 12741220 is about 3569.4845566272. The cubic root of 12741220 is about 233.5627992068.

Adding to 12741220 its reverse (2214721), we get a palindrome (14955941).

The spelling of 12741220 in words is "twelve million, seven hundred forty-one thousand, two hundred twenty".