1241220 has 48 divisors (see below), whose sum is σ = 3523968. Its totient is φ = 326400.

The previous prime is 1241203. The next prime is 1241243. The reversal of 1241220 is 221421.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1241196 and 1241205.

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, 8145 + ... + 8295.

It is an arithmetic number, because the mean of its divisors is an integer number (73416).

2^1241220 is an apocalyptic number.

1241220 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 1241220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1761984).

1241220 is an abundant number, since it is smaller than the sum of its proper divisors (2282748).

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

1241220 is a wasteful number, since it uses less digits than its factorization.

1241220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300 (or 298 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 1241220 is about 1114.1005340632. The cubic root of 1241220 is about 107.4689291852.

Adding to 1241220 its reverse (221421), we get a palindrome (1462641).

The spelling of 1241220 in words is "one million, two hundred forty-one thousand, two hundred twenty".