124440401 has 4 divisors (see below), whose sum is σ = 124472832. Its totient is φ = 124407972.

The previous prime is 124440397. The next prime is 124440413. The reversal of 124440401 is 104044421.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 124440401 - 2² = 124440397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124440431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9545 + ... + 18438.

It is an arithmetic number, because the mean of its divisors is an integer number (31118208).

Almost surely, 2^124440401 is an apocalyptic number.

It is an amenable number.

124440401 is a deficient number, since it is larger than the sum of its proper divisors (32431).

124440401 is an equidigital number, since it uses as much as digits as its factorization.

124440401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32430.

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

The square root of 124440401 is about 11155.2857874642. The cubic root of 124440401 is about 499.2527517966.

Adding to 124440401 its reverse (104044421), we get a palindrome (228484822).

The spelling of 124440401 in words is "one hundred twenty-four million, four hundred forty thousand, four hundred one".