442431123 has 8 divisors (see below), whose sum is σ = 604296336. Its totient is φ = 287760000.

The previous prime is 442431107. The next prime is 442431127. The reversal of 442431123 is 321134244.

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

It is not a de Polignac number, because 442431123 - 2⁴ = 442431107 is a prime.

It is a super-2 number, since 2×442431123² = 391490597198082258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 442431093 and 442431102.

It is not an unprimeable number, because it can be changed into a prime (442431127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1798378 + ... + 1798623.

It is an arithmetic number, because the mean of its divisors is an integer number (75537042).

Almost surely, 2^442431123 is an apocalyptic number.

442431123 is a deficient number, since it is larger than the sum of its proper divisors (161865213).

442431123 is a wasteful number, since it uses less digits than its factorization.

442431123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3597045.

The product of its digits is 2304, while the sum is 24.

The square root of 442431123 is about 21034.0467575785. The cubic root of 442431123 is about 761.9887450890.

Adding to 442431123 its reverse (321134244), we get a palindrome (763565367).

The spelling of 442431123 in words is "four hundred forty-two million, four hundred thirty-one thousand, one hundred twenty-three".