1223310 has 48 divisors (see below), whose sum is σ = 3236688. Its totient is φ = 295680.

The previous prime is 1223309. The next prime is 1223311. The reversal of 1223310 is 133221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1223309) and next prime (1223311).

It is a super-2 number, since 2×1223310² = 2992974712200, which contains 22 as substring.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3462 + ... + 3798.

It is an arithmetic number, because the mean of its divisors is an integer number (67431).

2^1223310 is an apocalyptic number.

1223310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1223310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1618344).

1223310 is an abundant number, since it is smaller than the sum of its proper divisors (2013378).

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

1223310 is a wasteful number, since it uses less digits than its factorization.

1223310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369 (or 358 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 1223310 is about 1106.0334533819. The cubic root of 1223310 is about 106.9495205452.

Adding to 1223310 its reverse (133221), we get a palindrome (1356531).

The spelling of 1223310 in words is "one million, two hundred twenty-three thousand, three hundred ten".