423442102 has 4 divisors (see below), whose sum is σ = 635163156. Its totient is φ = 211721050.

The previous prime is 423442099. The next prime is 423442111. The reversal of 423442102 is 201244324.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 as a sum of consecutive naturals, namely, 105860524 + ... + 105860527.

It is an arithmetic number, because the mean of its divisors is an integer number (158790789).

Almost surely, 2^423442102 is an apocalyptic number.

423442102 is a deficient number, since it is larger than the sum of its proper divisors (211721054).

423442102 is a wasteful number, since it uses less digits than its factorization.

423442102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211721053.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 423442102 is about 20577.7088617756. The cubic root of 423442102 is about 750.9275055422.

Adding to 423442102 its reverse (201244324), we get a palindrome (624686426).

The spelling of 423442102 in words is "four hundred twenty-three million, four hundred forty-two thousand, one hundred two".