1600220 has 48 divisors (see below), whose sum is σ = 3628800. Its totient is φ = 591360.

The previous prime is 1600219. The next prime is 1600223. The reversal of 1600220 is 220061.

1600220 is a modest number, since divided by 220 gives 160 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1600223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17936 + ... + 18024.

It is an arithmetic number, because the mean of its divisors is an integer number (75600).

2^1600220 is an apocalyptic number.

1600220 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 1600220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1814400).

1600220 is an abundant number, since it is smaller than the sum of its proper divisors (2028580).

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

1600220 is a wasteful number, since it uses less digits than its factorization.

1600220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1600220 is about 1264.9980237139. The cubic root of 1600220 is about 116.9660699820.

Adding to 1600220 its reverse (220061), we get a palindrome (1820281).

The spelling of 1600220 in words is "one million, six hundred thousand, two hundred twenty".