1363220 has 12 divisors (see below), whose sum is σ = 2862804. Its totient is φ = 545280.

The previous prime is 1363217. The next prime is 1363223. The reversal of 1363220 is 223631.

It is an interprime number because it is at equal distance from previous prime (1363217) and next prime (1363223).

It can be written as a sum of positive squares in 2 ways, for example, as 824464 + 538756 = 908^2 + 734^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1363223) 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, 34061 + ... + 34100.

It is an arithmetic number, because the mean of its divisors is an integer number (238567).

2^1363220 is an apocalyptic number.

1363220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1363220 is an abundant number, since it is smaller than the sum of its proper divisors (1499584).

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

1363220 is a wasteful number, since it uses less digits than its factorization.

1363220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68170 (or 68168 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1363220 is about 1167.5701263736. The cubic root of 1363220 is about 110.8805359208.

Adding to 1363220 its reverse (223631), we get a palindrome (1586851).

The spelling of 1363220 in words is "one million, three hundred sixty-three thousand, two hundred twenty".