423384655 has 16 divisors (see below), whose sum is σ = 522442368. Its totient is φ = 329184000.

The previous prime is 423384653. The next prime is 423384719. The reversal of 423384655 is 556483324.

It is not a de Polignac number, because 423384655 - 2¹ = 423384653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423384653) 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, 51745 + ... + 59365.

It is an arithmetic number, because the mean of its divisors is an integer number (32652648).

Almost surely, 2^423384655 is an apocalyptic number.

423384655 is a deficient number, since it is larger than the sum of its proper divisors (99057713).

423384655 is a wasteful number, since it uses less digits than its factorization.

423384655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7938.

The product of its digits is 345600, while the sum is 40.

The square root of 423384655 is about 20576.3129593229. The cubic root of 423384655 is about 750.8935453831.

It can be divided in two parts, 4233 and 84655, that added together give a palindrome (88888).

The spelling of 423384655 in words is "four hundred twenty-three million, three hundred eighty-four thousand, six hundred fifty-five".