1956220 has 48 divisors (see below), whose sum is σ = 4777920. Its totient is φ = 658944.

The previous prime is 1956217. The next prime is 1956239. The reversal of 1956220 is 226591.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12382 + ... + 12538.

It is an arithmetic number, because the mean of its divisors is an integer number (99540).

2^1956220 is an apocalyptic number.

1956220 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 1956220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2388960).

1956220 is an abundant number, since it is smaller than the sum of its proper divisors (2821700).

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

1956220 is a wasteful number, since it uses less digits than its factorization.

1956220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262 (or 260 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 1956220 is about 1398.6493484787. The cubic root of 1956220 is about 125.0659918212.

The spelling of 1956220 in words is "one million, nine hundred fifty-six thousand, two hundred twenty".