340688780 has 12 divisors (see below), whose sum is σ = 715446480. Its totient is φ = 136275504.

The previous prime is 340688779. The next prime is 340688783. The reversal of 340688780 is 87886043.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (340688783) 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, 8517200 + ... + 8517239.

It is an arithmetic number, because the mean of its divisors is an integer number (59620540).

Almost surely, 2^340688780 is an apocalyptic number.

It is an amenable number.

340688780 is an abundant number, since it is smaller than the sum of its proper divisors (374757700).

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

340688780 is a wasteful number, since it uses less digits than its factorization.

340688780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17034448 (or 17034446 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 44.

The square root of 340688780 is about 18457.7566350843. The cubic root of 340688780 is about 698.4241967931.

The spelling of 340688780 in words is "three hundred forty million, six hundred eighty-eight thousand, seven hundred eighty".