1423205452 has 12 divisors (see below), whose sum is σ = 2490918696. Its totient is φ = 711514400.

The previous prime is 1423205447. The next prime is 1423205453. The reversal of 1423205452 is 2545023241.

It is a self number, because there is not a number n which added to its sum of digits gives 1423205452.

It is not an unprimeable number, because it can be changed into a prime (1423205453) 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, 25623 + ... + 59185.

It is an arithmetic number, because the mean of its divisors is an integer number (207576558).

Almost surely, 2^1423205452 is an apocalyptic number.

It is an amenable number.

1423205452 is a deficient number, since it is larger than the sum of its proper divisors (1067713244).

1423205452 is a wasteful number, since it uses less digits than its factorization.

1423205452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44168 (or 44166 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 1423205452 is about 37725.3953193336. The cubic root of 1423205452 is about 1124.8359799067.

Adding to 1423205452 its reverse (2545023241), we get a palindrome (3968228693).

The spelling of 1423205452 in words is "one billion, four hundred twenty-three million, two hundred five thousand, four hundred fifty-two".