4021338 has 8 divisors (see below), whose sum is σ = 8042688. Its totient is φ = 1340444.

The previous prime is 4021309. The next prime is 4021349. The reversal of 4021338 is 8331204.

It is a happy number.

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

4021338 is an admirable number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 335106 + ... + 335117.

It is an arithmetic number, because the mean of its divisors is an integer number (1005336).

Almost surely, 2^4021338 is an apocalyptic number.

4021338 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

4021338 is a wasteful number, since it uses less digits than its factorization.

4021338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670228.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 4021338 is about 2005.3274046898. The cubic root of 4021338 is about 159.0218711261.

The spelling of 4021338 in words is "four million, twenty-one thousand, three hundred thirty-eight".