340000018 has 4 divisors (see below), whose sum is σ = 510000030. Its totient is φ = 170000008.

The previous prime is 339999997. The next prime is 340000019. The reversal of 340000018 is 810000043.

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., 329676649 + 10323369 = 18157^2 + 3213^2 .

It is a junction number, because it is equal to n+sod(n) for n = 339999956 and 340000010.

It is not an unprimeable number, because it can be changed into a prime (340000019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85000003 + ... + 85000006.

Almost surely, 2^340000018 is an apocalyptic number.

340000018 is a deficient number, since it is larger than the sum of its proper divisors (170000012).

340000018 is a wasteful number, since it uses less digits than its factorization.

340000018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170000011.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 340000018 is about 18439.0894026793. The cubic root of 340000018 is about 697.9532170077.

The spelling of 340000018 in words is "three hundred forty million, eighteen", and thus it is an aban number.