4432381 has 2 divisors, whose sum is σ = 4432382. Its totient is φ = 4432380.

The previous prime is 4432367. The next prime is 4432391. The reversal of 4432381 is 1832344.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4268356 + 164025 = 2066^2 + 405^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4432381 is a prime.

It is a super-2 number, since 2×4432381² = 39292002658322, which contains 22 as substring.

It is equal to p₃₁₁₄₈₈ and since 4432381 and 311488 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4432391) 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 as a sum of consecutive naturals, namely, 2216190 + 2216191.

It is an arithmetic number, because the mean of its divisors is an integer number (2216191).

Almost surely, 2^4432381 is an apocalyptic number.

It is an amenable number.

4432381 is a deficient number, since it is larger than the sum of its proper divisors (1).

4432381 is an equidigital number, since it uses as much as digits as its factorization.

4432381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304, while the sum is 25.

The square root of 4432381 is about 2105.3220656232. The cubic root of 4432381 is about 164.2652484363.

The spelling of 4432381 in words is "four million, four hundred thirty-two thousand, three hundred eighty-one".