3220140423 has 4 divisors (see below), whose sum is σ = 4293520568. Its totient is φ = 2146760280.

The previous prime is 3220140421. The next prime is 3220140437. The reversal of 3220140423 is 3240410223.

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

It is not a de Polignac number, because 3220140423 - 2¹ = 3220140421 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3220140423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3220140421) 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, 536690068 + ... + 536690073.

It is an arithmetic number, because the mean of its divisors is an integer number (1073380142).

Almost surely, 2^3220140423 is an apocalyptic number.

3220140423 is a deficient number, since it is larger than the sum of its proper divisors (1073380145).

3220140423 is a wasteful number, since it uses less digits than its factorization.

3220140423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073380144.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 3220140423 is about 56746.2811380623. The cubic root of 3220140423 is about 1476.6977173878.

Adding to 3220140423 its reverse (3240410223), we get a palindrome (6460550646).

The spelling of 3220140423 in words is "three billion, two hundred twenty million, one hundred forty thousand, four hundred twenty-three".