423340420042 has 16 divisors (see below), whose sum is σ = 658308148992. Its totient is φ = 203962980960.

The previous prime is 423340419989. The next prime is 423340420081. The reversal of 423340420042 is 240024043324.

It is a happy number.

It is a super-2 number, since 2×423340420042² (a number of 24 digits) contains 22 as substring.

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, 14638068 + ... + 14666959.

It is an arithmetic number, because the mean of its divisors is an integer number (41144259312).

Almost surely, 2^423340420042 is an apocalyptic number.

423340420042 is a deficient number, since it is larger than the sum of its proper divisors (234967728950).

423340420042 is a wasteful number, since it uses less digits than its factorization.

423340420042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29305293.

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 423340420042 its reverse (240024043324), we get a palindrome (663364463366).

The spelling of 423340420042 in words is "four hundred twenty-three billion, three hundred forty million, four hundred twenty thousand, forty-two".