1641104 has 20 divisors (see below), whose sum is σ = 3212220. Its totient is φ = 812160.

The previous prime is 1641103. The next prime is 1641131. The reversal of 1641104 is 4011461.

It can be written as a sum of positive squares in 2 ways, for example, as 1081600 + 559504 = 1040^2 + 748^2 .

It is not an unprimeable number, because it can be changed into a prime (1641103) by changing a digit.

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, 1274 + ... + 2214.

It is an arithmetic number, because the mean of its divisors is an integer number (160611).

2^1641104 is an apocalyptic number.

It is an amenable number.

1641104 is a deficient number, since it is larger than the sum of its proper divisors (1571116).

1641104 is a wasteful number, since it uses less digits than its factorization.

1641104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058 (or 1052 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1641104 is about 1281.0558145530. The cubic root of 1641104 is about 117.9538266154.

Adding to 1641104 its reverse (4011461), we get a palindrome (5652565).

The spelling of 1641104 in words is "one million, six hundred forty-one thousand, one hundred four".