340689679920 has 120 divisors (see below), whose sum is σ = 1162906207632. Its totient is φ = 89361216000.

The previous prime is 340689679909. The next prime is 340689679943. The reversal of 340689679920 is 29976986043.

340689679920 is a `hidden beast` number, since 3 + 406 + 89 + 67 + 9 + 92 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3834606 + ... + 3922445.

Almost surely, 2^340689679920 is an apocalyptic number.

340689679920 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

340689679920 is an abundant number, since it is smaller than the sum of its proper divisors (822216527712).

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

340689679920 is a wasteful number, since it uses less digits than its factorization.

340689679920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7757131 (or 7757122 counting only the distinct ones).

The product of its (nonzero) digits is 35271936, while the sum is 63.

The spelling of 340689679920 in words is "three hundred forty billion, six hundred eighty-nine million, six hundred seventy-nine thousand, nine hundred twenty".