1780041 has 16 divisors (see below), whose sum is σ = 2464128. Its totient is φ = 1142400.

The previous prime is 1780027. The next prime is 1780061. The reversal of 1780041 is 1400871.

It is not a de Polignac number, because 1780041 - 2⁷ = 1779913 is a prime.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (1780001) 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, 12925 + ... + 13061.

It is an arithmetic number, because the mean of its divisors is an integer number (154008).

2^1780041 is an apocalyptic number.

It is an amenable number.

1780041 is a deficient number, since it is larger than the sum of its proper divisors (684087).

1780041 is a wasteful number, since it uses less digits than its factorization.

1780041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272.

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 1780041 is about 1334.1817717238. The cubic root of 1780041 is about 121.1927579025.

The spelling of 1780041 in words is "one million, seven hundred eighty thousand, forty-one".