340240454763434 has 4 divisors (see below), whose sum is σ = 510360682145154. Its totient is φ = 170120227381716.

The previous prime is 340240454763421. The next prime is 340240454763439. The reversal of 340240454763434 is 434367454042043.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 340078410676225 + 162044087209 = 18441215^2 + 402547^2 .

It is not an unprimeable number, because it can be changed into a prime (340240454763439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85060113690857 + ... + 85060113690860.

Almost surely, 2^{340240454763434} is an apocalyptic number.

340240454763434 is a deficient number, since it is larger than the sum of its proper divisors (170120227381720).

340240454763434 is a wasteful number, since it uses less digits than its factorization.

340240454763434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170120227381719.

The product of its (nonzero) digits is 46448640, while the sum is 53.

The spelling of 340240454763434 in words is "three hundred forty trillion, two hundred forty billion, four hundred fifty-four million, seven hundred sixty-three thousand, four hundred thirty-four".