1641486 has 96 divisors (see below), whose sum is σ = 4596480. Its totient is φ = 380160.

The previous prime is 1641473. The next prime is 1641509. The reversal of 1641486 is 6841461.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 86385 + ... + 86403.

It is an arithmetic number, because the mean of its divisors is an integer number (47880).

2^1641486 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1641486, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2298240).

1641486 is an abundant number, since it is smaller than the sum of its proper divisors (2954994).

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

1641486 is a wasteful number, since it uses less digits than its factorization.

1641486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70 (or 59 counting only the distinct ones).

The product of its digits is 4608, while the sum is 30.

The square root of 1641486 is about 1281.2049016453. The cubic root of 1641486 is about 117.9629779481.

The spelling of 1641486 in words is "one million, six hundred forty-one thousand, four hundred eighty-six".