340638886 has 24 divisors (see below), whose sum is σ = 595034856. Its totient is φ = 145827360.

The previous prime is 340638871. The next prime is 340638899. The reversal of 340638886 is 688836043.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 143965 + ... + 146311.

It is an arithmetic number, because the mean of its divisors is an integer number (24793119).

Almost surely, 2^340638886 is an apocalyptic number.

340638886 is a deficient number, since it is larger than the sum of its proper divisors (254395970).

340638886 is a wasteful number, since it uses less digits than its factorization.

340638886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3844 (or 3837 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 46.

The square root of 340638886 is about 18456.4050128946. The cubic root of 340638886 is about 698.3901002998.

The spelling of 340638886 in words is "three hundred forty million, six hundred thirty-eight thousand, eight hundred eighty-six".