423868 has 6 divisors (see below), whose sum is σ = 741776. Its totient is φ = 211932.

The previous prime is 423859. The next prime is 423869. The reversal of 423868 is 868324.

It is a happy number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52980 + ... + 52987.

2⁴²³⁸⁶⁸ is an apocalyptic number.

It is an amenable number.

423868 is a deficient number, since it is larger than the sum of its proper divisors (317908).

423868 is a wasteful number, since it uses less digits than its factorization.

423868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105971 (or 105969 counting only the distinct ones).

The product of its digits is 9216, while the sum is 31.

The square root of 423868 is about 651.0514572597. The cubic root of 423868 is about 75.1179182105.

The spelling of 423868 in words is "four hundred twenty-three thousand, eight hundred sixty-eight".