423432042 has 32 divisors (see below), whose sum is σ = 925240320. Its totient is φ = 128119920.

The previous prime is 423432041. The next prime is 423432059. The reversal of 423432042 is 240234324.

It is not an unprimeable number, because it can be changed into a prime (423432041) 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, 42993 + ... + 51915.

It is an arithmetic number, because the mean of its divisors is an integer number (28913760).

Almost surely, 2^423432042 is an apocalyptic number.

423432042 is an abundant number, since it is smaller than the sum of its proper divisors (501808278).

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

423432042 is a wasteful number, since it uses less digits than its factorization.

423432042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9658.

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

The square root of 423432042 is about 20577.4644210602. The cubic root of 423432042 is about 750.9215587311.

Adding to 423432042 its reverse (240234324), we get a palindrome (663666366).

The spelling of 423432042 in words is "four hundred twenty-three million, four hundred thirty-two thousand, forty-two".