340235643634 has 4 divisors (see below), whose sum is σ = 510353465454. Its totient is φ = 170117821816.

The previous prime is 340235643589. The next prime is 340235643659. The reversal of 340235643634 is 436346532043.

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., 213069944025 + 127165699609 = 461595^2 + 356603^2 .

It is a super-3 number, since 3×340235643634³ (a number of 36 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85058910907 + ... + 85058910910.

Almost surely, 2^340235643634 is an apocalyptic number.

340235643634 is a deficient number, since it is larger than the sum of its proper divisors (170117821820).

340235643634 is a wasteful number, since it uses less digits than its factorization.

340235643634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170117821819.

The product of its (nonzero) digits is 1866240, while the sum is 43.

The spelling of 340235643634 in words is "three hundred forty billion, two hundred thirty-five million, six hundred forty-three thousand, six hundred thirty-four".