4420023 has 4 divisors (see below), whose sum is σ = 5893368. Its totient is φ = 2946680.

The previous prime is 4420019. The next prime is 4420037. The reversal of 4420023 is 3200244.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 4420023 - 2² = 4420019 is a prime.

It is a D-number.

4420023 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 4419984 and 4420011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4420043) 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 in 3 ways as a sum of consecutive naturals, for example, 736668 + ... + 736673.

It is an arithmetic number, because the mean of its divisors is an integer number (1473342).

Almost surely, 2^4420023 is an apocalyptic number.

4420023 is a deficient number, since it is larger than the sum of its proper divisors (1473345).

4420023 is a wasteful number, since it uses less digits than its factorization.

4420023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1473344.

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 4420023 is about 2102.3850741479. The cubic root of 4420023 is about 164.1124427182.

Adding to 4420023 its reverse (3200244), we get a palindrome (7620267).

It can be divided in two parts, 442002 and 3, that multiplied together give a triangular number (1326006 = T₁₆₂₈).

The spelling of 4420023 in words is "four million, four hundred twenty thousand, twenty-three".