340342203874 has 4 divisors (see below), whose sum is σ = 510513305814. Its totient is φ = 170171101936.

The previous prime is 340342203847. The next prime is 340342203893. The reversal of 340342203874 is 478302243043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 478302243043 = 47 ⋅10176643469.

It can be written as a sum of positive squares in only one way, i.e., 240300942025 + 100041261849 = 490205^2 + 316293^2 .

It is a super-2 number, since 2×340342203874² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85085550967 + ... + 85085550970.

Almost surely, 2^340342203874 is an apocalyptic number.

340342203874 is a deficient number, since it is larger than the sum of its proper divisors (170171101940).

340342203874 is a wasteful number, since it uses less digits than its factorization.

340342203874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170171101939.

The product of its (nonzero) digits is 387072, while the sum is 40.

The spelling of 340342203874 in words is "three hundred forty billion, three hundred forty-two million, two hundred three thousand, eight hundred seventy-four".