123440441 has 8 divisors (see below), whose sum is σ = 124497384. Its totient is φ = 122388480.

The previous prime is 123440437. The next prime is 123440459. The reversal of 123440441 is 144044321.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 84640000 + 38800441 = 9200^2 + 6229^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 123440441 - 2² = 123440437 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (123440431) 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, 60941 + ... + 62933.

It is an arithmetic number, because the mean of its divisors is an integer number (15562173).

Almost surely, 2^123440441 is an apocalyptic number.

It is an amenable number.

123440441 is a deficient number, since it is larger than the sum of its proper divisors (1056943).

123440441 is a wasteful number, since it uses less digits than its factorization.

123440441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2491.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 123440441 is about 11110.3753761968. The cubic root of 123440441 is about 497.9118796464.

Adding to 123440441 its reverse (144044321), we get a palindrome (267484762).

The spelling of 123440441 in words is "one hundred twenty-three million, four hundred forty thousand, four hundred forty-one".