423228345 has 16 divisors (see below), whose sum is σ = 716999040. Its totient is φ = 212443904.

The previous prime is 423228329. The next prime is 423228367. The reversal of 423228345 is 543822324.

It is a cyclic number.

It is not a de Polignac number, because 423228345 - 2⁴ = 423228329 is a prime.

It is a super-2 number, since 2×423228345² = 358244464022878050, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 829605 + ... + 830114.

It is an arithmetic number, because the mean of its divisors is an integer number (44812440).

Almost surely, 2^423228345 is an apocalyptic number.

It is an amenable number.

423228345 is a deficient number, since it is larger than the sum of its proper divisors (293770695).

423228345 is a wasteful number, since it uses less digits than its factorization.

423228345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1659744.

The product of its digits is 46080, while the sum is 33.

The square root of 423228345 is about 20572.5143091456. The cubic root of 423228345 is about 750.8011261800.

The spelling of 423228345 in words is "four hundred twenty-three million, two hundred twenty-eight thousand, three hundred forty-five".