1203220 has 12 divisors (see below), whose sum is σ = 2526804. Its totient is φ = 481280.

The previous prime is 1203217. The next prime is 1203221. The reversal of 1203220 is 223021.

It can be written as a sum of positive squares in 2 ways, for example, as 857476 + 345744 = 926^2 + 588^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 1203197 and 1203206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1203221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30061 + ... + 30100.

It is an arithmetic number, because the mean of its divisors is an integer number (210567).

2^1203220 is an apocalyptic number.

1203220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1203220 is an abundant number, since it is smaller than the sum of its proper divisors (1323584).

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

1203220 is a wasteful number, since it uses less digits than its factorization.

1203220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60170 (or 60168 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 1203220 is about 1096.9138525883. The cubic root of 1203220 is about 106.3608209342.

Adding to 1203220 its reverse (223021), we get a palindrome (1426241).

The spelling of 1203220 in words is "one million, two hundred three thousand, two hundred twenty".