34208381 has 4 divisors (see below), whose sum is σ = 34220700. Its totient is φ = 34196064.

The previous prime is 34208353. The next prime is 34208393. The reversal of 34208381 is 18380243.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 17935225 + 16273156 = 4235^2 + 4034^2 .

It is a cyclic number.

It is not a de Polignac number, because 34208381 - 2²² = 30014077 is a prime.

It is a super-2 number, since 2×34208381² = 2340426661282322, 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 (34208281) 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, 185 + ... + 8273.

It is an arithmetic number, because the mean of its divisors is an integer number (8555175).

Almost surely, 2^34208381 is an apocalyptic number.

It is an amenable number.

34208381 is a deficient number, since it is larger than the sum of its proper divisors (12319).

34208381 is an equidigital number, since it uses as much as digits as its factorization.

34208381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12318.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 34208381 is about 5848.7931233717. The cubic root of 34208381 is about 324.6216694232.

The spelling of 34208381 in words is "thirty-four million, two hundred eight thousand, three hundred eighty-one".