1641460 has 12 divisors (see below), whose sum is σ = 3447108. Its totient is φ = 656576.

The previous prime is 1641457. The next prime is 1641473. The reversal of 1641460 is 641461.

It can be written as a sum of positive squares in 2 ways, for example, as 191844 + 1449616 = 438^2 + 1204^2 .

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41017 + ... + 41056.

It is an arithmetic number, because the mean of its divisors is an integer number (287259).

2^1641460 is an apocalyptic number.

1641460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1641460 is an abundant number, since it is smaller than the sum of its proper divisors (1805648).

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

1641460 is a wasteful number, since it uses less digits than its factorization.

1641460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82082 (or 82080 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1641460 is about 1281.1947549065. The cubic root of 1641460 is about 117.9623551275.

Subtracting from 1641460 its reverse (641461), we obtain a palindrome (999999).

The spelling of 1641460 in words is "one million, six hundred forty-one thousand, four hundred sixty".