423443345 has 16 divisors (see below), whose sum is σ = 551167680. Its totient is φ = 310440384.

The previous prime is 423443333. The next prime is 423443357. The reversal of 423443345 is 543344324.

It is an interprime number because it is at equal distance from previous prime (423443333) and next prime (423443357).

It is a cyclic number.

It is not a de Polignac number, because 423443345 - 2¹⁰ = 423442321 is a prime.

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, 14399 + ... + 32468.

It is an arithmetic number, because the mean of its divisors is an integer number (34447980).

Almost surely, 2^423443345 is an apocalyptic number.

It is an amenable number.

423443345 is a deficient number, since it is larger than the sum of its proper divisors (127724335).

423443345 is a wasteful number, since it uses less digits than its factorization.

423443345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47024.

The product of its digits is 69120, while the sum is 32.

The square root of 423443345 is about 20577.7390643384. The cubic root of 423443345 is about 750.9282403156.

Adding to 423443345 its reverse (543344324), we get a palindrome (966787669).

The spelling of 423443345 in words is "four hundred twenty-three million, four hundred forty-three thousand, three hundred forty-five".