1559220 has 48 divisors (see below), whose sum is σ = 4704000. Its totient is φ = 383616.

The previous prime is 1559213. The next prime is 1559227. The reversal of 1559220 is 229551.

It is an interprime number because it is at equal distance from previous prime (1559213) and next prime (1559227).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1559227) 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, 220 + ... + 1779.

It is an arithmetic number, because the mean of its divisors is an integer number (98000).

2^1559220 is an apocalyptic number.

1559220 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 1559220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2352000).

1559220 is an abundant number, since it is smaller than the sum of its proper divisors (3144780).

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

1559220 is a wasteful number, since it uses less digits than its factorization.

1559220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2024 (or 2022 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 1559220 is about 1248.6873107388. The cubic root of 1559220 is about 115.9584670972.

The spelling of 1559220 in words is "one million, five hundred fifty-nine thousand, two hundred twenty".