1626041 has 4 divisors (see below), whose sum is σ = 1629684. Its totient is φ = 1622400.

The previous prime is 1626017. The next prime is 1626047. The reversal of 1626041 is 1406261.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1406261 = 263 ⋅5347.

It can be written as a sum of positive squares in 2 ways, for example, as 137641 + 1488400 = 371^2 + 1220^2 .

It is a cyclic number.

It is not a de Polignac number, because 1626041 - 2⁶ = 1625977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1626047) 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 3 ways as a sum of consecutive naturals, for example, 1040 + ... + 2081.

It is an arithmetic number, because the mean of its divisors is an integer number (407421).

2^1626041 is an apocalyptic number.

It is an amenable number.

1626041 is a deficient number, since it is larger than the sum of its proper divisors (3643).

1626041 is an equidigital number, since it uses as much as digits as its factorization.

1626041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3642.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1626041 is about 1275.1631268195. The cubic root of 1626041 is about 117.5918340466.

The spelling of 1626041 in words is "one million, six hundred twenty-six thousand, forty-one".