423342441890 has 8 divisors (see below), whose sum is σ = 762016395420. Its totient is φ = 169336976752.

The previous prime is 423342441889. The next prime is 423342441913. The reversal of 423342441890 is 98144243324.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 420003797929 + 3338643961 = 648077^2 + 57781^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21167122085 + ... + 21167122104.

Almost surely, 2^423342441890 is an apocalyptic number.

423342441890 is a deficient number, since it is larger than the sum of its proper divisors (338673953530).

423342441890 is a wasteful number, since it uses less digits than its factorization.

423342441890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42334244196.

The product of its (nonzero) digits is 663552, while the sum is 44.

The spelling of 423342441890 in words is "four hundred twenty-three billion, three hundred forty-two million, four hundred forty-one thousand, eight hundred ninety".