423223546 has 4 divisors (see below), whose sum is σ = 634835322. Its totient is φ = 211611772.

The previous prime is 423223531. The next prime is 423223547. The reversal of 423223546 is 645322324.

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., 355737321 + 67486225 = 18861^2 + 8215^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (423223547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105805885 + ... + 105805888.

Almost surely, 2^423223546 is an apocalyptic number.

423223546 is a deficient number, since it is larger than the sum of its proper divisors (211611776).

423223546 is a wasteful number, since it uses less digits than its factorization.

423223546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211611775.

The product of its digits is 34560, while the sum is 31.

The square root of 423223546 is about 20572.3976726098. The cubic root of 423223546 is about 750.7982883831.

The spelling of 423223546 in words is "four hundred twenty-three million, two hundred twenty-three thousand, five hundred forty-six".