1641026 has 8 divisors (see below), whose sum is σ = 2503440. Its totient is φ = 806548.

The previous prime is 1641007. The next prime is 1641043. The reversal of 1641026 is 6201461.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1640989 and 1641007.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6836 + ... + 7071.

It is an arithmetic number, because the mean of its divisors is an integer number (312930).

2^1641026 is an apocalyptic number.

1641026 is a deficient number, since it is larger than the sum of its proper divisors (862414).

1641026 is a wasteful number, since it uses less digits than its factorization.

1641026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13968.

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

The square root of 1641026 is about 1281.0253705528. The cubic root of 1641026 is about 117.9519578440.

Adding to 1641026 its reverse (6201461), we get a palindrome (7842487).

The spelling of 1641026 in words is "one million, six hundred forty-one thousand, twenty-six".