124404421 has 8 divisors (see below), whose sum is σ = 125546400. Its totient is φ = 123266832.

The previous prime is 124404383. The next prime is 124404439.

124404421 is nontrivially palindromic in base 10.

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 124404421 - 2²³ = 116015813 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 124404392 and 124404401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124404451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83146 + ... + 84628.

It is an arithmetic number, because the mean of its divisors is an integer number (15693300).

Almost surely, 2^124404421 is an apocalyptic number.

It is an amenable number.

124404421 is a deficient number, since it is larger than the sum of its proper divisors (1141979).

124404421 is a wasteful number, since it uses less digits than its factorization.

124404421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2195.

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 124404421 is about 11153.6729824753. The cubic root of 124404421 is about 499.2046301110.

It can be divided in two parts, 12440 and 4421, that added together give a palindrome (16861).

The spelling of 124404421 in words is "one hundred twenty-four million, four hundred four thousand, four hundred twenty-one".