423431142 has 8 divisors (see below), whose sum is σ = 846862296. Its totient is φ = 141143712.

The previous prime is 423431137. The next prime is 423431143. The reversal of 423431142 is 241134324.

It is a sphenic number, since it is the product of 3 distinct primes.

423431142 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423431143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35285923 + ... + 35285934.

It is an arithmetic number, because the mean of its divisors is an integer number (105857787).

Almost surely, 2^423431142 is an apocalyptic number.

423431142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

423431142 is a wasteful number, since it uses less digits than its factorization.

423431142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70571862.

The product of its digits is 2304, while the sum is 24.

The square root of 423431142 is about 20577.4425524651. The cubic root of 423431142 is about 750.9210267056.

Adding to 423431142 its reverse (241134324), we get a palindrome (664565466).

The spelling of 423431142 in words is "four hundred twenty-three million, four hundred thirty-one thousand, one hundred forty-two".