423988366 has 8 divisors (see below), whose sum is σ = 637345800. Its totient is φ = 211539768.

The previous prime is 423988361. The next prime is 423988379. The reversal of 423988366 is 663889324.

It is a happy number.

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

It is a super-2 number, since 2×423988366² = 359532269006699912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423988361) 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 in 3 ways as a sum of consecutive naturals, for example, 226041 + ... + 227908.

It is an arithmetic number, because the mean of its divisors is an integer number (79668225).

Almost surely, 2^423988366 is an apocalyptic number.

423988366 is a deficient number, since it is larger than the sum of its proper divisors (213357434).

423988366 is a wasteful number, since it uses less digits than its factorization.

423988366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454418.

The product of its digits is 1492992, while the sum is 49.

The square root of 423988366 is about 20590.9777815431. The cubic root of 423988366 is about 751.2502796134.

The spelling of 423988366 in words is "four hundred twenty-three million, nine hundred eighty-eight thousand, three hundred sixty-six".