4355381 has 8 divisors (see below), whose sum is σ = 4559544. Its totient is φ = 4155840.

The previous prime is 4355371. The next prime is 4355401. The reversal of 4355381 is 1835534.

It can be written as a sum of positive squares in 4 ways, for example, as 2353156 + 2002225 = 1534^2 + 1415^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4355381 - 2⁶ = 4355317 is a prime.

It is a super-2 number, since 2×4355381² = 37938687310322, 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 (4355311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 851 + ... + 3071.

It is an arithmetic number, because the mean of its divisors is an integer number (569943).

Almost surely, 2^4355381 is an apocalyptic number.

It is an amenable number.

4355381 is a deficient number, since it is larger than the sum of its proper divisors (204163).

4355381 is a wasteful number, since it uses less digits than its factorization.

4355381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2311.

The product of its digits is 7200, while the sum is 29.

The square root of 4355381 is about 2086.9549587856. The cubic root of 4355381 is about 163.3084727769.

It can be divided in two parts, 43553 and 81, that added together give a palindrome (43634).

The spelling of 4355381 in words is "four million, three hundred fifty-five thousand, three hundred eighty-one".