423242435444 has 6 divisors (see below), whose sum is σ = 740674262034. Its totient is φ = 211621217720.

The previous prime is 423242435423. The next prime is 423242435449. The reversal of 423242435444 is 444534242324.

It can be written as a sum of positive squares in only one way, i.e., 351210316900 + 72032118544 = 592630^2 + 268388^2 .

It is a super-3 number, since 3×423242435444³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423242435449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52905304427 + ... + 52905304434.

It is an arithmetic number, because the mean of its divisors is an integer number (123445710339).

Almost surely, 2^423242435444 is an apocalyptic number.

It is an amenable number.

423242435444 is a deficient number, since it is larger than the sum of its proper divisors (317431826590).

423242435444 is a wasteful number, since it uses less digits than its factorization.

423242435444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105810608865 (or 105810608863 counting only the distinct ones).

The product of its digits is 1474560, while the sum is 41.

Adding to 423242435444 its reverse (444534242324), we get a palindrome (867776677768).

The spelling of 423242435444 in words is "four hundred twenty-three billion, two hundred forty-two million, four hundred thirty-five thousand, four hundred forty-four".