340240455 has 24 divisors (see below), whose sum is σ = 591420960. Its totient is φ = 180947520.

The previous prime is 340240423. The next prime is 340240471. The reversal of 340240455 is 554042043.

It is not a de Polignac number, because 340240455 - 2⁵ = 340240423 is a prime.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 5625 + ... + 26685.

It is an arithmetic number, because the mean of its divisors is an integer number (24642540).

Almost surely, 2^340240455 is an apocalyptic number.

340240455 is a deficient number, since it is larger than the sum of its proper divisors (251180505).

340240455 is a wasteful number, since it uses less digits than its factorization.

340240455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21431 (or 21428 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 340240455 is about 18445.6080138335. The cubic root of 340240455 is about 698.1177015438.

Adding to 340240455 its reverse (554042043), we get a palindrome (894282498).

The spelling of 340240455 in words is "three hundred forty million, two hundred forty thousand, four hundred fifty-five".