423439802 has 8 divisors (see below), whose sum is σ = 635279412. Its totient is φ = 211680000.

The previous prime is 423439789. The next prime is 423439813. The reversal of 423439802 is 208934324.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 388523521 + 34916281 = 19711^2 + 5909^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a nialpdrome in base 12.

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 3 ways as a sum of consecutive naturals, for example, 4199 + ... + 29402.

Almost surely, 2^423439802 is an apocalyptic number.

423439802 is a deficient number, since it is larger than the sum of its proper divisors (211839610).

423439802 is a wasteful number, since it uses less digits than its factorization.

423439802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39904.

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 423439802 is about 20577.6529759834. The cubic root of 423439802 is about 750.9261459416.

The spelling of 423439802 in words is "four hundred twenty-three million, four hundred thirty-nine thousand, eight hundred two".