340344401 has 4 divisors (see below), whose sum is σ = 340874352. Its totient is φ = 339814452.

The previous prime is 340344383. The next prime is 340344421. The reversal of 340344401 is 104443043.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-340344401 is a prime.

It is a super-2 number, since 2×340344401² = 231668622584097602, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (340344421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 264011 + ... + 265296.

It is an arithmetic number, because the mean of its divisors is an integer number (85218588).

Almost surely, 2^340344401 is an apocalyptic number.

It is an amenable number.

340344401 is a deficient number, since it is larger than the sum of its proper divisors (529951).

340344401 is an equidigital number, since it uses as much as digits as its factorization.

340344401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529950.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 340344401 is about 18448.4254341665. The cubic root of 340344401 is about 698.1887876957.

Adding to 340344401 its reverse (104443043), we get a palindrome (444787444).

The spelling of 340344401 in words is "three hundred forty million, three hundred forty-four thousand, four hundred one".