423245669 has 32 divisors (see below), whose sum is σ = 544444416. Its totient is φ = 319475520.

The previous prime is 423245659. The next prime is 423245671. The reversal of 423245669 is 966542324.

It is not a de Polignac number, because 423245669 - 2²⁸ = 154810213 is a prime.

It is a super-2 number, since 2×423245669² = 358273792654515122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423245639) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 386687 + ... + 387779.

It is an arithmetic number, because the mean of its divisors is an integer number (17013888).

Almost surely, 2^423245669 is an apocalyptic number.

It is an amenable number.

423245669 is a deficient number, since it is larger than the sum of its proper divisors (121198747).

423245669 is a wasteful number, since it uses less digits than its factorization.

423245669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1265.

The product of its digits is 311040, while the sum is 41.

The square root of 423245669 is about 20572.9353520590. The cubic root of 423245669 is about 750.8113702176.

The spelling of 423245669 in words is "four hundred twenty-three million, two hundred forty-five thousand, six hundred sixty-nine".