340242518 has 32 divisors (see below), whose sum is σ = 651829248. Its totient is φ = 129326400.

The previous prime is 340242509. The next prime is 340242521. The reversal of 340242518 is 815242043.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20630 + ... + 33257.

It is an arithmetic number, because the mean of its divisors is an integer number (20369664).

Almost surely, 2^340242518 is an apocalyptic number.

340242518 is a deficient number, since it is larger than the sum of its proper divisors (311586730).

340242518 is a wasteful number, since it uses less digits than its factorization.

340242518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53948.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 340242518 is about 18445.6639349198. The cubic root of 340242518 is about 698.1191125203.

The spelling of 340242518 in words is "three hundred forty million, two hundred forty-two thousand, five hundred eighteen".