340978634 has 8 divisors (see below), whose sum is σ = 533705760. Its totient is φ = 163076716.

The previous prime is 340978633. The next prime is 340978663. The reversal of 340978634 is 436879043.

It is a happy number.

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 (340978633) 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, 3706244 + ... + 3706335.

It is an arithmetic number, because the mean of its divisors is an integer number (66713220).

Almost surely, 2^340978634 is an apocalyptic number.

340978634 is a deficient number, since it is larger than the sum of its proper divisors (192727126).

340978634 is a wasteful number, since it uses less digits than its factorization.

340978634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7412604.

The product of its (nonzero) digits is 435456, while the sum is 44.

The square root of 340978634 is about 18465.6067866724. The cubic root of 340978634 is about 698.6222110069.

The spelling of 340978634 in words is "three hundred forty million, nine hundred seventy-eight thousand, six hundred thirty-four".