124404401 has 12 divisors (see below), whose sum is σ = 141877680. Its totient is φ = 108172680.

The previous prime is 124404383. The next prime is 124404439. The reversal of 124404401 is 104404421.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-124404401 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 (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 11 ways as a sum of consecutive naturals, for example, 4871 + ... + 16508.

It is an arithmetic number, because the mean of its divisors is an integer number (11823140).

Almost surely, 2^124404401 is an apocalyptic number.

124404401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

124404401 is a deficient number, since it is larger than the sum of its proper divisors (17473279).

124404401 is a wasteful number, since it uses less digits than its factorization.

124404401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21436 (or 21413 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 124404401 is about 11153.6720859096. The cubic root of 124404401 is about 499.2046033593.

Adding to 124404401 its sum of digits (20), we get a palindrome (124404421).

Adding to 124404401 its reverse (104404421), we get a palindrome (228808822).

The spelling of 124404401 in words is "one hundred twenty-four million, four hundred four thousand, four hundred one".