340878541 has 4 divisors (see below), whose sum is σ = 343562752. Its totient is φ = 338194332.

The previous prime is 340878529. The next prime is 340878547. The reversal of 340878541 is 145878043.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 340878541 - 2⁷ = 340878413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 340878494 and 340878503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340878547) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1341915 + ... + 1342168.

It is an arithmetic number, because the mean of its divisors is an integer number (85890688).

Almost surely, 2^340878541 is an apocalyptic number.

It is an amenable number.

340878541 is a deficient number, since it is larger than the sum of its proper divisors (2684211).

340878541 is a wasteful number, since it uses less digits than its factorization.

340878541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2684210.

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 340878541 is about 18462.8963329159. The cubic root of 340878541 is about 698.5538450064.

The spelling of 340878541 in words is "three hundred forty million, eight hundred seventy-eight thousand, five hundred forty-one".