340420441 has 4 divisors (see below), whose sum is σ = 340462900. Its totient is φ = 340377984.

The previous prime is 340420439. The next prime is 340420469. The reversal of 340420441 is 144024043.

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, and also an emirpimes, since its reverse is a distinct semiprime: 144024043 = 7591 ⋅18973.

It can be written as a sum of positive squares in 2 ways, for example, as 294465600 + 45954841 = 17160^2 + 6779^2 .

It is a cyclic number.

It is not a de Polignac number, because 340420441 - 2¹ = 340420439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340420411) 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, 5136 + ... + 26593.

It is an arithmetic number, because the mean of its divisors is an integer number (85115725).

Almost surely, 2^340420441 is an apocalyptic number.

It is an amenable number.

340420441 is a deficient number, since it is larger than the sum of its proper divisors (42459).

340420441 is a wasteful number, since it uses less digits than its factorization.

340420441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42458.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 340420441 is about 18450.4861995558. The cubic root of 340420441 is about 698.2407804437.

Adding to 340420441 its reverse (144024043), we get a palindrome (484444484).

The spelling of 340420441 in words is "three hundred forty million, four hundred twenty thousand, four hundred forty-one".