3824421 has 8 divisors (see below), whose sum is σ = 5108544. Its totient is φ = 2544960.

The previous prime is 3824413. The next prime is 3824441. The reversal of 3824421 is 1244283.

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

It is not a de Polignac number, because 3824421 - 2³ = 3824413 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3824391 and 3824400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3824441) 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, 1920 + ... + 3366.

It is an arithmetic number, because the mean of its divisors is an integer number (638568).

Almost surely, 2^3824421 is an apocalyptic number.

It is an amenable number.

3824421 is a deficient number, since it is larger than the sum of its proper divisors (1284123).

3824421 is a wasteful number, since it uses less digits than its factorization.

3824421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2331.

The product of its digits is 1536, while the sum is 24.

The square root of 3824421 is about 1955.6126917158. The cubic root of 3824421 is about 156.3826487424.

The spelling of 3824421 in words is "three million, eight hundred twenty-four thousand, four hundred twenty-one".