341440021 has 16 divisors (see below), whose sum is σ = 375984000. Its totient is φ = 308138688.

The previous prime is 341439977. The next prime is 341440039. The reversal of 341440021 is 120044143.

It is not a de Polignac number, because 341440021 - 2¹¹ = 341437973 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 (341440061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151515 + ... + 153751.

It is an arithmetic number, because the mean of its divisors is an integer number (23499000).

Almost surely, 2^341440021 is an apocalyptic number.

It is an amenable number.

341440021 is a deficient number, since it is larger than the sum of its proper divisors (34543979).

341440021 is a wasteful number, since it uses less digits than its factorization.

341440021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2508.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 341440021 is about 18478.0957081621. The cubic root of 341440021 is about 698.9371769084.

Adding to 341440021 its reverse (120044143), we get a palindrome (461484164).

The spelling of 341440021 in words is "three hundred forty-one million, four hundred forty thousand, twenty-one".