4006023 has 8 divisors (see below), whose sum is σ = 6104448. Its totient is φ = 2289144.

The previous prime is 4006019. The next prime is 4006039. The reversal of 4006023 is 3206004.

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

It is not a de Polignac number, because 4006023 - 2² = 4006019 is a prime.

4006023 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 4005993 and 4006011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4006063) 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, 95361 + ... + 95402.

It is an arithmetic number, because the mean of its divisors is an integer number (763056).

Almost surely, 2^4006023 is an apocalyptic number.

4006023 is a deficient number, since it is larger than the sum of its proper divisors (2098425).

4006023 is a wasteful number, since it uses less digits than its factorization.

4006023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190773.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 4006023 is about 2001.5051836056. The cubic root of 4006023 is about 158.8197395448.

The spelling of 4006023 in words is "four million, six thousand, twenty-three".