4366021 has 8 divisors (see below), whose sum is σ = 4970304. Its totient is φ = 3796320.

The previous prime is 4366007. The next prime is 4366027. The reversal of 4366021 is 1206634.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4366021 - 2⁹ = 4365509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4365983 and 4366001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4366027) 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, 8376 + ... + 8881.

It is an arithmetic number, because the mean of its divisors is an integer number (621288).

Almost surely, 2^4366021 is an apocalyptic number.

It is an amenable number.

4366021 is a deficient number, since it is larger than the sum of its proper divisors (604283).

4366021 is a wasteful number, since it uses less digits than its factorization.

4366021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17291.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 4366021 is about 2089.5025723842. The cubic root of 4366021 is about 163.4413497174.

It can be divided in two parts, 43660 and 21, that added together give a square (43681 = 209²).

The spelling of 4366021 in words is "four million, three hundred sixty-six thousand, twenty-one".