4021273 has 8 divisors (see below), whose sum is σ = 4171392. Its totient is φ = 3873936.

The previous prime is 4021261. The next prime is 4021301. The reversal of 4021273 is 3721204.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4021273 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4021273.

It is not an unprimeable number, because it can be changed into a prime (4021243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2511 + ... + 3787.

It is an arithmetic number, because the mean of its divisors is an integer number (521424).

Almost surely, 2^4021273 is an apocalyptic number.

It is an amenable number.

4021273 is a deficient number, since it is larger than the sum of its proper divisors (150119).

4021273 is a wasteful number, since it uses less digits than its factorization.

4021273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 4021273 is about 2005.3111977945. The cubic root of 4021273 is about 159.0210143236.

Adding to 4021273 its reverse (3721204), we get a palindrome (7742477).

The spelling of 4021273 in words is "four million, twenty-one thousand, two hundred seventy-three".