340215455 has 8 divisors (see below), whose sum is σ = 410540400. Its totient is φ = 270651136.

The previous prime is 340215439. The next prime is 340215479. The reversal of 340215455 is 554512043.

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 340215455 - 2⁴ = 340215439 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189170 + ... + 190959.

It is an arithmetic number, because the mean of its divisors is an integer number (51317550).

Almost surely, 2^340215455 is an apocalyptic number.

340215455 is a deficient number, since it is larger than the sum of its proper divisors (70324945).

340215455 is a wasteful number, since it uses less digits than its factorization.

340215455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380313.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 340215455 is about 18444.9303332921. The cubic root of 340215455 is about 698.1006024895.

Adding to 340215455 its reverse (554512043), we get a palindrome (894727498).

The spelling of 340215455 in words is "three hundred forty million, two hundred fifteen thousand, four hundred fifty-five".