340990280 has 32 divisors (see below), whose sum is σ = 778040640. Its totient is φ = 134473920.

The previous prime is 340990231. The next prime is 340990289. The reversal of 340990280 is 82099043.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 340990280.

It is not an unprimeable number, because it can be changed into a prime (340990289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57194 + ... + 62873.

It is an arithmetic number, because the mean of its divisors is an integer number (24313770).

Almost surely, 2^340990280 is an apocalyptic number.

It is an amenable number.

340990280 is an abundant number, since it is smaller than the sum of its proper divisors (437050360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

340990280 is a wasteful number, since it uses less digits than its factorization.

340990280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120149 (or 120145 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 340990280 is about 18465.9221269884. The cubic root of 340990280 is about 698.6301646447.

The spelling of 340990280 in words is "three hundred forty million, nine hundred ninety thousand, two hundred eighty".