423968 has 12 divisors (see below), whose sum is σ = 834750. Its totient is φ = 211968.

The previous prime is 423961. The next prime is 423977. The reversal of 423968 is 869324.

It can be written as a sum of positive squares in only one way, i.e., 394384 + 29584 = 628^2 + 172^2 .

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 13249 = 423968 / (4 + 2 + 3 + 9 + 6 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6593 + ... + 6656.

2⁴²³⁹⁶⁸ is an apocalyptic number.

It is an amenable number.

423968 is a deficient number, since it is larger than the sum of its proper divisors (410782).

423968 is a wasteful number, since it uses less digits than its factorization.

423968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13259 (or 13251 counting only the distinct ones).

The product of its digits is 10368, while the sum is 32.

The square root of 423968 is about 651.1282515757. The cubic root of 423968 is about 75.1238250818.

The spelling of 423968 in words is "four hundred twenty-three thousand, nine hundred sixty-eight".