3924401 has 4 divisors (see below), whose sum is σ = 4226292. Its totient is φ = 3622512.

The previous prime is 3924353. The next prime is 3924409. The reversal of 3924401 is 1044293.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 160801 + 3763600 = 401^2 + 1940^2 .

It is a cyclic number.

It is not a de Polignac number, because 3924401 - 2⁶ = 3924337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3924409) 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 3 ways as a sum of consecutive naturals, for example, 150926 + ... + 150951.

It is an arithmetic number, because the mean of its divisors is an integer number (1056573).

Almost surely, 2^3924401 is an apocalyptic number.

It is an amenable number.

3924401 is a deficient number, since it is larger than the sum of its proper divisors (301891).

3924401 is a wasteful number, since it uses less digits than its factorization.

3924401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301890.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 3924401 is about 1981.0100958854. The cubic root of 3924401 is about 157.7336885376.

Adding to 3924401 its reverse (1044293), we get a palindrome (4968694).

The spelling of 3924401 in words is "three million, nine hundred twenty-four thousand, four hundred one".