423442031 has 8 divisors (see below), whose sum is σ = 427358400. Its totient is φ = 419541408.

The previous prime is 423442007. The next prime is 423442039. The reversal of 423442031 is 130244324.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423442031 is a prime.

It is a super-2 number, since 2×423442031² = 358606307234809922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 423441988 and 423442006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423442039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53945 + ... + 61293.

It is an arithmetic number, because the mean of its divisors is an integer number (53419800).

Almost surely, 2^423442031 is an apocalyptic number.

423442031 is a deficient number, since it is larger than the sum of its proper divisors (3916369).

423442031 is a wasteful number, since it uses less digits than its factorization.

423442031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7873.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 423442031 is about 20577.7071366078. The cubic root of 423442031 is about 750.9274635720.

Adding to 423442031 its reverse (130244324), we get a palindrome (553686355).

The spelling of 423442031 in words is "four hundred twenty-three million, four hundred forty-two thousand, thirty-one".