1641450 has 48 divisors (see below), whose sum is σ = 4214016. Its totient is φ = 422400.

The previous prime is 1641407. The next prime is 1641457. The reversal of 1641450 is 541461.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1641457) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 4474 + ... + 4826.

It is an arithmetic number, because the mean of its divisors is an integer number (87792).

2^1641450 is an apocalyptic number.

1641450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1641450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2107008).

1641450 is an abundant number, since it is smaller than the sum of its proper divisors (2572566).

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

1641450 is a wasteful number, since it uses less digits than its factorization.

1641450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399 (or 394 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1641450 is about 1281.1908522933. The cubic root of 1641450 is about 117.9621155794.

The spelling of 1641450 in words is "one million, six hundred forty-one thousand, four hundred fifty".