4204152421 has 6 divisors (see below), whose sum is σ = 4890544710. Its totient is φ = 3603559176.

The previous prime is 4204152409. The next prime is 4204152427. The reversal of 4204152421 is 1242514024.

It can be written as a sum of positive squares in only one way, i.e., 3286728900 + 917423521 = 57330^2 + 30289^2 .

It is not a de Polignac number, because 4204152421 - 2¹⁹ = 4203628133 is a prime.

It is a super-2 number, since 2×4204152421² = 35349795158000322482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4204152427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42899466 + ... + 42899563.

It is an arithmetic number, because the mean of its divisors is an integer number (815090785).

Almost surely, 2^4204152421 is an apocalyptic number.

It is an amenable number.

4204152421 is a deficient number, since it is larger than the sum of its proper divisors (686392289).

4204152421 is an equidigital number, since it uses as much as digits as its factorization.

4204152421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85799043 (or 85799036 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 4204152421 is about 64839.4356931027. The cubic root of 4204152421 is about 1613.9601879524.

Adding to 4204152421 its reverse (1242514024), we get a palindrome (5446666445).

The spelling of 4204152421 in words is "four billion, two hundred four million, one hundred fifty-two thousand, four hundred twenty-one".