4021023 has 8 divisors (see below), whose sum is σ = 5377968. Its totient is φ = 2672384.

The previous prime is 4021019. The next prime is 4021033. The reversal of 4021023 is 3201204.

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

It is a cyclic number.

It is not a de Polignac number, because 4021023 - 2² = 4021019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021013) 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, 840 + ... + 2957.

It is an arithmetic number, because the mean of its divisors is an integer number (672246).

Almost surely, 2^4021023 is an apocalyptic number.

4021023 is a deficient number, since it is larger than the sum of its proper divisors (1356945).

4021023 is a wasteful number, since it uses less digits than its factorization.

4021023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4153.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 4021023 is about 2005.2488623610. The cubic root of 4021023 is about 159.0177188434.

Adding to 4021023 its reverse (3201204), we get a palindrome (7222227).

The spelling of 4021023 in words is "four million, twenty-one thousand, twenty-three".