4148821 has 8 divisors (see below), whose sum is σ = 4442400. Its totient is φ = 3862800.

The previous prime is 4148819. The next prime is 4148849. The reversal of 4148821 is 1288414.

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 4148821 - 2¹ = 4148819 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4148821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4148861) 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, 730 + ... + 2971.

It is an arithmetic number, because the mean of its divisors is an integer number (555300).

Almost surely, 2^4148821 is an apocalyptic number.

It is an amenable number.

4148821 is a deficient number, since it is larger than the sum of its proper divisors (293579).

4148821 is a wasteful number, since it uses less digits than its factorization.

4148821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3779.

The product of its digits is 2048, while the sum is 28.

The square root of 4148821 is about 2036.8654840220. The cubic root of 4148821 is about 160.6848379862.

The spelling of 4148821 in words is "four million, one hundred forty-eight thousand, eight hundred twenty-one".