4435381 has 2 divisors, whose sum is σ = 4435382. Its totient is φ = 4435380.

The previous prime is 4435373. The next prime is 4435397. The reversal of 4435381 is 1835344.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4431025 + 4356 = 2105^2 + 66^2 .

It is a cyclic number.

It is not a de Polignac number, because 4435381 - 2³ = 4435373 is a prime.

It is a super-2 number, since 2×4435381² = 39345209230322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4432381) 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, 2217690 + 2217691.

It is an arithmetic number, because the mean of its divisors is an integer number (2217691).

Almost surely, 2^4435381 is an apocalyptic number.

It is an amenable number.

4435381 is a deficient number, since it is larger than the sum of its proper divisors (1).

4435381 is an equidigital number, since it uses as much as digits as its factorization.

4435381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 28.

The square root of 4435381 is about 2106.0344251697. The cubic root of 4435381 is about 164.3023003508.

The spelling of 4435381 in words is "four million, four hundred thirty-five thousand, three hundred eighty-one".