4021764 has 24 divisors (see below), whose sum is σ = 9417408. Its totient is φ = 1335840.

The previous prime is 4021751. The next prime is 4021769. The reversal of 4021764 is 4671204.

4021764 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (4021769) 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 7 ways as a sum of consecutive naturals, for example, 5169 + ... + 5895.

It is an arithmetic number, because the mean of its divisors is an integer number (392392).

Almost surely, 2^4021764 is an apocalyptic number.

It is an amenable number.

4021764 is an abundant number, since it is smaller than the sum of its proper divisors (5395644).

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

4021764 is a wasteful number, since it uses less digits than its factorization.

4021764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1195 (or 1193 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 4021764 is about 2005.4336189463. The cubic root of 4021764 is about 159.0274862493.

Adding to 4021764 its reverse (4671204), we get a palindrome (8692968).

The spelling of 4021764 in words is "four million, twenty-one thousand, seven hundred sixty-four".