1610220 has 48 divisors (see below), whose sum is σ = 4612608. Its totient is φ = 419520.

The previous prime is 1610183. The next prime is 1610227. The reversal of 1610220 is 220161.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1610196 and 1610205.

It is not an unprimeable number, because it can be changed into a prime (1610227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2535 + ... + 3105.

It is an arithmetic number, because the mean of its divisors is an integer number (96096).

2^1610220 is an apocalyptic number.

1610220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1610220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2306304).

1610220 is an abundant number, since it is smaller than the sum of its proper divisors (3002388).

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

1610220 is a wasteful number, since it uses less digits than its factorization.

1610220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630 (or 628 counting only the distinct ones).

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

The square root of 1610220 is about 1268.9444432283. The cubic root of 1610220 is about 117.2092100222.

Adding to 1610220 its reverse (220161), we get a palindrome (1830381).

It can be divided in two parts, 1610 and 220, that added together give a triangular number (1830 = T₆₀).

The spelling of 1610220 in words is "one million, six hundred ten thousand, two hundred twenty".