340268138 has 8 divisors (see below), whose sum is σ = 583316832. Its totient is φ = 145829196.

The previous prime is 340268119. The next prime is 340268161. The reversal of 340268138 is 831862043.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 340268098 and 340268107.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12152420 + ... + 12152447.

It is an arithmetic number, because the mean of its divisors is an integer number (72914604).

Almost surely, 2^340268138 is an apocalyptic number.

340268138 is a deficient number, since it is larger than the sum of its proper divisors (243048694).

340268138 is a wasteful number, since it uses less digits than its factorization.

340268138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24304876.

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 340268138 is about 18446.3583940029. The cubic root of 340268138 is about 698.1366346913.

The spelling of 340268138 in words is "three hundred forty million, two hundred sixty-eight thousand, one hundred thirty-eight".