423243502 has 16 divisors (see below), whose sum is σ = 698038272. Its totient is φ = 190867320.

The previous prime is 423243433. The next prime is 423243511. The reversal of 423243502 is 205342324.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72948 + ... + 78535.

It is an arithmetic number, because the mean of its divisors is an integer number (43627392).

Almost surely, 2^423243502 is an apocalyptic number.

423243502 is a deficient number, since it is larger than the sum of its proper divisors (274794770).

423243502 is a wasteful number, since it uses less digits than its factorization.

423243502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151623.

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 423243502 is about 20572.8826857103. The cubic root of 423243502 is about 750.8100888412.

Adding to 423243502 its reverse (205342324), we get a palindrome (628585826).

The spelling of 423243502 in words is "four hundred twenty-three million, two hundred forty-three thousand, five hundred two".