1220610 has 64 divisors (see below), whose sum is σ = 3214080. Its totient is φ = 295680.

The previous prime is 1220599. The next prime is 1220623. The reversal of 1220610 is 160221.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19980 + ... + 20040.

It is an arithmetic number, because the mean of its divisors is an integer number (50220).

2^1220610 is an apocalyptic number.

1220610 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 1220610, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1607040).

1220610 is an abundant number, since it is smaller than the sum of its proper divisors (1993470).

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

1220610 is a wasteful number, since it uses less digits than its factorization.

1220610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1220610 is about 1104.8122012360. The cubic root of 1220610 is about 106.8707788764.

Adding to 1220610 its reverse (160221), we get a palindrome (1380831).

It can be divided in two parts, 1220 and 610, that added together give a triangular number (1830 = T₆₀).

The spelling of 1220610 in words is "one million, two hundred twenty thousand, six hundred ten".