3440023 has 4 divisors (see below), whose sum is σ = 3523968. Its totient is φ = 3356080.

The previous prime is 3440011. The next prime is 3440029. The reversal of 3440023 is 3200443.

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 3440023 - 2¹⁷ = 3308951 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3439979 and 3440006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3440029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41911 + ... + 41992.

It is an arithmetic number, because the mean of its divisors is an integer number (880992).

Almost surely, 2^3440023 is an apocalyptic number.

3440023 is a deficient number, since it is larger than the sum of its proper divisors (83945).

3440023 is an equidigital number, since it uses as much as digits as its factorization.

3440023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83944.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 3440023 is about 1854.7298994732. The cubic root of 3440023 is about 150.9571827198.

Adding to 3440023 its reverse (3200443), we get a palindrome (6640466).

The spelling of 3440023 in words is "three million, four hundred forty thousand, twenty-three".