340000138 has 8 divisors (see below), whose sum is σ = 515050020. Its totient is φ = 168316800.

The previous prime is 340000127. The next prime is 340000139. The reversal of 340000138 is 831000043.

It can be written as a sum of positive squares in 2 ways, for example, as 272481049 + 67519089 = 16507^2 + 8217^2 .

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

It is not an unprimeable number, because it can be changed into a prime (340000139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 841383 + ... + 841786.

Almost surely, 2^340000138 is an apocalyptic number.

340000138 is a deficient number, since it is larger than the sum of its proper divisors (175049882).

340000138 is a wasteful number, since it uses less digits than its factorization.

340000138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1683272.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 340000138 is about 18439.0926566358. The cubic root of 340000138 is about 697.9532991198.

The spelling of 340000138 in words is "three hundred forty million, one hundred thirty-eight", and thus it is an aban number.