423339890 has 16 divisors (see below), whose sum is σ = 763535808. Its totient is φ = 168997296.

The previous prime is 423339887. The next prime is 423339901. The reversal of 423339890 is 98933324.

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, 37052 + ... + 47111.

It is an arithmetic number, because the mean of its divisors is an integer number (47720988).

Almost surely, 2^423339890 is an apocalyptic number.

423339890 is a deficient number, since it is larger than the sum of its proper divisors (340195918).

423339890 is a wasteful number, since it uses less digits than its factorization.

423339890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84673.

The product of its (nonzero) digits is 139968, while the sum is 41.

The square root of 423339890 is about 20575.2251506515. The cubic root of 423339890 is about 750.8670801394.

The spelling of 423339890 in words is "four hundred twenty-three million, three hundred thirty-nine thousand, eight hundred ninety".