4002023 has 8 divisors (see below), whose sum is σ = 4202496. Its totient is φ = 3803800.

The previous prime is 4002017. The next prime is 4002041. The reversal of 4002023 is 3202004.

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 4002023 - 2¹² = 3997927 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4001995 and 4002013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4002013) 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, 3938 + ... + 4848.

It is an arithmetic number, because the mean of its divisors is an integer number (525312).

Almost surely, 2^4002023 is an apocalyptic number.

4002023 is a deficient number, since it is larger than the sum of its proper divisors (200473).

4002023 is a wasteful number, since it uses less digits than its factorization.

4002023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125.

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 4002023 is about 2000.5056860704. The cubic root of 4002023 is about 158.7668616227.

Adding to 4002023 its reverse (3202004), we get a palindrome (7204027).

The spelling of 4002023 in words is "four million, two thousand, twenty-three".