1223380 has 12 divisors (see below), whose sum is σ = 2569140. Its totient is φ = 489344.

The previous prime is 1223357. The next prime is 1223381. The reversal of 1223380 is 833221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 427716 + 795664 = 654^2 + 892^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223381) 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, 30565 + ... + 30604.

It is an arithmetic number, because the mean of its divisors is an integer number (214095).

2^1223380 is an apocalyptic number.

1223380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223380 is an abundant number, since it is smaller than the sum of its proper divisors (1345760).

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

1223380 is a wasteful number, since it uses less digits than its factorization.

1223380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61178 (or 61176 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1223380 is about 1106.0650975417. The cubic root of 1223380 is about 106.9515604543.

The spelling of 1223380 in words is "one million, two hundred twenty-three thousand, three hundred eighty".