21068341 has 8 divisors (see below), whose sum is σ = 24312704. Its totient is φ = 17882640.

The previous prime is 21068339. The next prime is 21068357. The reversal of 21068341 is 14386012.

21068341 = T₁₄₀₆ + T₁₄₀₇ + ... + T₁₄₂₆.

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

It is a cyclic number.

It is not a de Polignac number, because 21068341 - 2¹ = 21068339 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21068041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13890 + ... + 15331.

It is an arithmetic number, because the mean of its divisors is an integer number (3039088).

Almost surely, 2^21068341 is an apocalyptic number.

It is an amenable number.

21068341 is a deficient number, since it is larger than the sum of its proper divisors (3244363).

21068341 is a wasteful number, since it uses less digits than its factorization.

21068341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29331.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 21068341 is about 4590.0262526482. The cubic root of 21068341 is about 276.1913755331.

The spelling of 21068341 in words is "twenty-one million, sixty-eight thousand, three hundred forty-one".