1801056 has 48 divisors (see below), whose sum is σ = 4811184. Its totient is φ = 589824.

The previous prime is 1801039. The next prime is 1801073. The reversal of 1801056 is 6501081.

It is an interprime number because it is at equal distance from previous prime (1801039) and next prime (1801073).

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6880 + ... + 7136.

It is an arithmetic number, because the mean of its divisors is an integer number (100233).

2^1801056 is an apocalyptic number.

1801056 is a gapful number since it is divisible by the number (16) 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 1801056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2405592).

1801056 is an abundant number, since it is smaller than the sum of its proper divisors (3010128).

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

1801056 is a wasteful number, since it uses less digits than its factorization.

1801056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343 (or 335 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 1801056 is about 1342.0342767605. The cubic root of 1801056 is about 121.6678234289.

The spelling of 1801056 in words is "one million, eight hundred one thousand, fifty-six".