4021342 has 8 divisors (see below), whose sum is σ = 6496056. Its totient is φ = 1855992.

The previous prime is 4021309. The next prime is 4021349. The reversal of 4021342 is 2431204.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77308 + ... + 77359.

It is an arithmetic number, because the mean of its divisors is an integer number (812007).

Almost surely, 2^4021342 is an apocalyptic number.

4021342 is a deficient number, since it is larger than the sum of its proper divisors (2474714).

4021342 is a wasteful number, since it uses less digits than its factorization.

4021342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154682.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 4021342 is about 2005.3284020329. The cubic root of 4021342 is about 159.0219238521.

Adding to 4021342 its reverse (2431204), we get a palindrome (6452546).

The spelling of 4021342 in words is "four million, twenty-one thousand, three hundred forty-two".