4050321 has 16 divisors (see below), whose sum is σ = 5940480. Its totient is φ = 2434320.

The previous prime is 4050311. The next prime is 4050329. The reversal of 4050321 is 1230504.

It is not a de Polignac number, because 4050321 - 2⁵ = 4050289 is a prime.

It is a d-powerful number, because it can be written as 4² + 0 + 5⁹ + 0 + 3³ + 2²¹ + 1 .

It is a Curzon number.

4050321 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 4050321.

It is not an unprimeable number, because it can be changed into a prime (4050329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4146 + ... + 5028.

It is an arithmetic number, because the mean of its divisors is an integer number (371280).

Almost surely, 2^4050321 is an apocalyptic number.

It is an amenable number.

4050321 is a deficient number, since it is larger than the sum of its proper divisors (1890159).

4050321 is a wasteful number, since it uses less digits than its factorization.

4050321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 4050321 is about 2012.5409312608. The cubic root of 4050321 is about 159.4029965427.

Adding to 4050321 its reverse (1230504), we get a palindrome (5280825).

It can be divided in two parts, 4050 and 321, that added together give a triangular number (4371 = T₉₃).

The spelling of 4050321 in words is "four million, fifty thousand, three hundred twenty-one".