4021354 has 4 divisors (see below), whose sum is σ = 6032034. Its totient is φ = 2010676.

The previous prime is 4021349. The next prime is 4021357. The reversal of 4021354 is 4531204.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3713329 + 308025 = 1927^2 + 555^2 .

It is not an unprimeable number, because it can be changed into a prime (4021357) 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 as a sum of consecutive naturals, namely, 1005337 + ... + 1005340.

Almost surely, 2^4021354 is an apocalyptic number.

4021354 is a deficient number, since it is larger than the sum of its proper divisors (2010680).

4021354 is a wasteful number, since it uses less digits than its factorization.

4021354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2010679.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 4021354 is about 2005.3313940593. The cubic root of 4021354 is about 159.0220820299.

Adding to 4021354 its reverse (4531204), we get a palindrome (8552558).

The spelling of 4021354 in words is "four million, twenty-one thousand, three hundred fifty-four".