3824220521 has 8 divisors (see below), whose sum is σ = 4174015104. Its totient is φ = 3474782320.

The previous prime is 3824220487. The next prime is 3824220529. The reversal of 3824220521 is 1250224283.

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 3824220521 - 2⁶ = 3824220457 is a prime.

It is a super-2 number, since 2×3824220521² = 29249325186475022882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3824220529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66401 + ... + 109806.

It is an arithmetic number, because the mean of its divisors is an integer number (521751888).

Almost surely, 2^3824220521 is an apocalyptic number.

It is an amenable number.

3824220521 is a deficient number, since it is larger than the sum of its proper divisors (349794583).

3824220521 is a wasteful number, since it uses less digits than its factorization.

3824220521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178191.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 3824220521 is about 61840.2823489673. The cubic root of 3824220521 is about 1563.7991612963.

The spelling of 3824220521 in words is "three billion, eight hundred twenty-four million, two hundred twenty thousand, five hundred twenty-one".