423542455 has 16 divisors (see below), whose sum is σ = 581753664. Its totient is φ = 289981440.

The previous prime is 423542417. The next prime is 423542473. The reversal of 423542455 is 554245324.

It is not a de Polignac number, because 423542455 - 2¹¹ = 423540407 is a prime.

It is a super-2 number, since 2×423542455² = 358776422374854050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 423542455.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14565 + ... + 32545.

It is an arithmetic number, because the mean of its divisors is an integer number (36359604).

Almost surely, 2^423542455 is an apocalyptic number.

423542455 is a deficient number, since it is larger than the sum of its proper divisors (158211209).

423542455 is a wasteful number, since it uses less digits than its factorization.

423542455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18666.

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

The square root of 423542455 is about 20580.1471083178. The cubic root of 423542455 is about 750.9868224872.

Adding to 423542455 its reverse (554245324), we get a palindrome (977787779).

The spelling of 423542455 in words is "four hundred twenty-three million, five hundred forty-two thousand, four hundred fifty-five".