340253205446402 has 4 divisors (see below), whose sum is σ = 510379808169606. Its totient is φ = 170126602723200.

The previous prime is 340253205446359. The next prime is 340253205446443. The reversal of 340253205446402 is 204644502352043.

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., 334612300192921 + 5640905253481 = 18292411^2 + 2375059^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85063301361599 + ... + 85063301361602.

Almost surely, 2^{340253205446402} is an apocalyptic number.

340253205446402 is a deficient number, since it is larger than the sum of its proper divisors (170126602723204).

340253205446402 is a wasteful number, since it uses less digits than its factorization.

340253205446402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170126602723203.

The product of its (nonzero) digits is 2764800, while the sum is 44.

Adding to 340253205446402 its reverse (204644502352043), we get a palindrome (544897707798445).

The spelling of 340253205446402 in words is "three hundred forty trillion, two hundred fifty-three billion, two hundred five million, four hundred forty-six thousand, four hundred two".