340871639 has 8 divisors (see below), whose sum is σ = 355017888. Its totient is φ = 326985120.

The previous prime is 340871623. The next prime is 340871651. The reversal of 340871639 is 936178043.

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

It is a cyclic number.

It is not a de Polignac number, because 340871639 - 2⁴ = 340871623 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 340871596 and 340871605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340801639) 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, 62252 + ... + 67505.

It is an arithmetic number, because the mean of its divisors is an integer number (44377236).

Almost surely, 2^340871639 is an apocalyptic number.

340871639 is a deficient number, since it is larger than the sum of its proper divisors (14146249).

340871639 is a wasteful number, since it uses less digits than its factorization.

340871639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129865.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 340871639 is about 18462.7094165510. The cubic root of 340871639 is about 698.5491302761.

The spelling of 340871639 in words is "three hundred forty million, eight hundred seventy-one thousand, six hundred thirty-nine".