423424555 has 16 divisors (see below), whose sum is σ = 511842240. Its totient is φ = 336262528.

The previous prime is 423424553. The next prime is 423424577. The reversal of 423424555 is 555424324.

It is a cyclic number.

It is not a de Polignac number, because 423424555 - 2¹ = 423424553 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 423424555.

It is not an unprimeable number, because it can be changed into a prime (423424553) 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, 569514 + ... + 570256.

It is an arithmetic number, because the mean of its divisors is an integer number (31990140).

Almost surely, 2^423424555 is an apocalyptic number.

423424555 is a deficient number, since it is larger than the sum of its proper divisors (88417685).

423424555 is a wasteful number, since it uses less digits than its factorization.

423424555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1430.

The product of its digits is 96000, while the sum is 34.

The square root of 423424555 is about 20577.2824979393. The cubic root of 423424555 is about 750.9171328475.

Adding to 423424555 its reverse (555424324), we get a palindrome (978848879).

The spelling of 423424555 in words is "four hundred twenty-three million, four hundred twenty-four thousand, five hundred fifty-five".