4342381 has 4 divisors (see below), whose sum is σ = 4383072. Its totient is φ = 4301692.

The previous prime is 4342367. The next prime is 4342397. The reversal of 4342381 is 1832434.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1832434 = 2 ⋅916217.

It is a cyclic number.

It is not a de Polignac number, because 4342381 - 2¹⁹ = 3818093 is a prime.

It is a super-2 number, since 2×4342381² = 37712545498322, which contains 22 as substring.

It is a d-powerful number, because it can be written as 4⁷ + 3³ + 4¹¹ + 2¹⁷ + 3⁴ + 8³ + 1 .

It is a Duffinian number.

4342381 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4342301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20185 + ... + 20398.

It is an arithmetic number, because the mean of its divisors is an integer number (1095768).

Almost surely, 2^4342381 is an apocalyptic number.

It is an amenable number.

4342381 is a deficient number, since it is larger than the sum of its proper divisors (40691).

4342381 is a wasteful number, since it uses less digits than its factorization.

4342381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40690.

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

The square root of 4342381 is about 2083.8380455304. The cubic root of 4342381 is about 163.1458290711.

It can be divided in two parts, 43 and 42381, that added together give a palindrome (42424).

The spelling of 4342381 in words is "four million, three hundred forty-two thousand, three hundred eighty-one".