423423042 has 96 divisors (see below), whose sum is σ = 1023533952. Its totient is φ = 114296832.

The previous prime is 423423041. The next prime is 423423053. The reversal of 423423042 is 240324324.

It is not an unprimeable number, because it can be changed into a prime (423423041) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4365138 + ... + 4365234.

It is an arithmetic number, because the mean of its divisors is an integer number (10661812).

Almost surely, 2^423423042 is an apocalyptic number.

423423042 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 423423042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (511766976).

423423042 is an abundant number, since it is smaller than the sum of its proper divisors (600110910).

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

423423042 is a wasteful number, since it uses less digits than its factorization.

423423042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252 (or 199 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 423423042 is about 20577.2457340627. The cubic root of 423423042 is about 750.9162384426.

Adding to 423423042 its reverse (240324324), we get a palindrome (663747366).

The spelling of 423423042 in words is "four hundred twenty-three million, four hundred twenty-three thousand, forty-two".