1798056 has 96 divisors (see below), whose sum is σ = 5601960. Its totient is φ = 516096.

The previous prime is 1798051. The next prime is 1798057. The reversal of 1798056 is 6508971.

It can be written as a sum of positive squares in 4 ways, for example, as 933156 + 864900 = 966^2 + 930^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1798056.

It is not an unprimeable number, because it can be changed into a prime (1798051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15856 + ... + 15968.

2^1798056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1798056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2800980).

1798056 is an abundant number, since it is smaller than the sum of its proper divisors (3803904).

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

1798056 is a wasteful number, since it uses less digits than its factorization.

1798056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155 (or 148 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 1798056 is about 1340.9161047582. The cubic root of 1798056 is about 121.6002322826.

Subtracting 1798056 from its reverse (6508971), we obtain a triangular number (4710915 = T₃₀₆₉).

The spelling of 1798056 in words is "one million, seven hundred ninety-eight thousand, fifty-six".