123444634 has 16 divisors (see below), whose sum is σ = 203388480. Its totient is φ = 55931040.

The previous prime is 123444631. The next prime is 123444661. The reversal of 123444634 is 436444321.

It is a junction number, because it is equal to n+sod(n) for n = 123444596 and 123444605.

It is not an unprimeable number, because it can be changed into a prime (123444631) by changing a digit.

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, 69747 + ... + 71494.

It is an arithmetic number, because the mean of its divisors is an integer number (12711780).

Almost surely, 2^123444634 is an apocalyptic number.

123444634 is a deficient number, since it is larger than the sum of its proper divisors (79943846).

123444634 is a wasteful number, since it uses less digits than its factorization.

123444634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141285.

The product of its digits is 27648, while the sum is 31.

The square root of 123444634 is about 11110.5640720892. The cubic root of 123444634 is about 497.9175172393.

Adding to 123444634 its reverse (436444321), we get a palindrome (559888955).

The spelling of 123444634 in words is "one hundred twenty-three million, four hundred forty-four thousand, six hundred thirty-four".