123442634 has 8 divisors (see below), whose sum is σ = 211615968. Its totient is φ = 52903980.

The previous prime is 123442597. The next prime is 123442667. The reversal of 123442634 is 436244321.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 123442597 and 123442606.

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, 4408652 + ... + 4408679.

It is an arithmetic number, because the mean of its divisors is an integer number (26451996).

Almost surely, 2^123442634 is an apocalyptic number.

123442634 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

123442634 is a deficient number, since it is larger than the sum of its proper divisors (88173334).

123442634 is an equidigital number, since it uses as much as digits as its factorization.

123442634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8817340.

The product of its digits is 13824, while the sum is 29.

The square root of 123442634 is about 11110.4740672934. The cubic root of 123442634 is about 497.9148282054.

Adding to 123442634 its reverse (436244321), we get a palindrome (559686955).

The spelling of 123442634 in words is "one hundred twenty-three million, four hundred forty-two thousand, six hundred thirty-four".