423453555 has 64 divisors (see below), whose sum is σ = 868454400. Its totient is φ = 191756160.

The previous prime is 423453553. The next prime is 423453559. The reversal of 423453555 is 555354324.

423453555 is a `hidden beast` number, since 42 + 34 + 535 + 55 = 666.

It is not a de Polignac number, because 423453555 - 2¹ = 423453553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (423453553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 100950 + ... + 105060.

It is an arithmetic number, because the mean of its divisors is an integer number (13569600).

Almost surely, 2^423453555 is an apocalyptic number.

423453555 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

423453555 is an abundant number, since it is smaller than the sum of its proper divisors (445000845).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

423453555 is a wasteful number, since it uses less digits than its factorization.

423453555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4241 (or 4235 counting only the distinct ones).

The product of its digits is 180000, while the sum is 36.

The square root of 423453555 is about 20577.9871464631. The cubic root of 423453555 is about 750.9342756887.

The spelling of 423453555 in words is "four hundred twenty-three million, four hundred fifty-three thousand, five hundred fifty-five".