42204423 has 16 divisors (see below), whose sum is σ = 58752000. Its totient is φ = 26917440.

The previous prime is 42204419. The next prime is 42204427. The reversal of 42204423 is 32440224.

It is an interprime number because it is at equal distance from previous prime (42204419) and next prime (42204427).

It is not a de Polignac number, because 42204423 - 2² = 42204419 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42204423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42204427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5728 + ... + 10826.

It is an arithmetic number, because the mean of its divisors is an integer number (3672000).

Almost surely, 2^42204423 is an apocalyptic number.

42204423 is a deficient number, since it is larger than the sum of its proper divisors (16547577).

42204423 is a wasteful number, since it uses less digits than its factorization.

42204423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5222.

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 42204423 is about 6496.4931309130. The cubic root of 42204423 is about 348.1657042141.

Adding to 42204423 its reverse (32440224), we get a palindrome (74644647).

The spelling of 42204423 in words is "forty-two million, two hundred four thousand, four hundred twenty-three".