340668542 has 16 divisors (see below), whose sum is σ = 542495232. Its totient is φ = 159889920.

The previous prime is 340668541. The next prime is 340668551. The reversal of 340668542 is 245866043.

It is a junction number, because it is equal to n+sod(n) for n = 340668496 and 340668505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340668541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59 + ... + 26102.

It is an arithmetic number, because the mean of its divisors is an integer number (33905952).

Almost surely, 2^340668542 is an apocalyptic number.

340668542 is a deficient number, since it is larger than the sum of its proper divisors (201826690).

340668542 is a wasteful number, since it uses less digits than its factorization.

340668542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26563.

The product of its (nonzero) digits is 138240, while the sum is 38.

The square root of 340668542 is about 18457.2084021393. The cubic root of 340668542 is about 698.4103669777.

The spelling of 340668542 in words is "three hundred forty million, six hundred sixty-eight thousand, five hundred forty-two".