423443442 has 32 divisors (see below), whose sum is σ = 879998400. Its totient is φ = 135672768.

The previous prime is 423443441. The next prime is 423443453. The reversal of 423443442 is 244344324.

It is not an unprimeable number, because it can be changed into a prime (423443441) 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, 34533 + ... + 45159.

It is an arithmetic number, because the mean of its divisors is an integer number (27499950).

Almost surely, 2^423443442 is an apocalyptic number.

423443442 is an abundant number, since it is smaller than the sum of its proper divisors (456554958).

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

423443442 is a wasteful number, since it uses less digits than its factorization.

423443442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10890.

The product of its digits is 36864, while the sum is 30.

The square root of 423443442 is about 20577.7414212542. The cubic root of 423443442 is about 750.9282976550.

Adding to 423443442 its reverse (244344324), we get a palindrome (667787766).

The spelling of 423443442 in words is "four hundred twenty-three million, four hundred forty-three thousand, four hundred forty-two".