4023406 has 4 divisors (see below), whose sum is σ = 6035112. Its totient is φ = 2011702.

The previous prime is 4023401. The next prime is 4023469. The reversal of 4023406 is 6043204.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4023401) 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, 1005850 + ... + 1005853.

It is an arithmetic number, because the mean of its divisors is an integer number (1508778).

Almost surely, 2^4023406 is an apocalyptic number.

4023406 is a deficient number, since it is larger than the sum of its proper divisors (2011706).

4023406 is a wasteful number, since it uses less digits than its factorization.

4023406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2011705.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 4023406 is about 2005.8429649402. The cubic root of 4023406 is about 159.0491258088.

The spelling of 4023406 in words is "four million, twenty-three thousand, four hundred six".