423421142 has 8 divisors (see below), whose sum is σ = 672492456. Its totient is φ = 199256992.

The previous prime is 423421139. The next prime is 423421153. The reversal of 423421142 is 241124324.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6226748 + ... + 6226815.

It is an arithmetic number, because the mean of its divisors is an integer number (84061557).

Almost surely, 2^423421142 is an apocalyptic number.

423421142 is a deficient number, since it is larger than the sum of its proper divisors (249071314).

423421142 is a wasteful number, since it uses less digits than its factorization.

423421142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12453582.

The product of its digits is 1536, while the sum is 23.

The square root of 423421142 is about 20577.1995665105. The cubic root of 423421142 is about 750.9151152609.

Adding to 423421142 its reverse (241124324), we get a palindrome (664545466).

The spelling of 423421142 in words is "four hundred twenty-three million, four hundred twenty-one thousand, one hundred forty-two".