423231338 has 4 divisors (see below), whose sum is σ = 634847010. Its totient is φ = 211615668.

The previous prime is 423231317. The next prime is 423231343. The reversal of 423231338 is 833132324.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 319944769 + 103286569 = 17887^2 + 10163^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 423231338.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105807833 + ... + 105807836.

Almost surely, 2^423231338 is an apocalyptic number.

423231338 is a deficient number, since it is larger than the sum of its proper divisors (211615672).

423231338 is a wasteful number, since it uses less digits than its factorization.

423231338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211615671.

The product of its digits is 10368, while the sum is 29.

The square root of 423231338 is about 20572.5870517055. The cubic root of 423231338 is about 750.8028960224.

The spelling of 423231338 in words is "four hundred twenty-three million, two hundred thirty-one thousand, three hundred thirty-eight".