20706076340 has 24 divisors (see below), whose sum is σ = 43540691712. Its totient is φ = 8271396000.

The previous prime is 20706076333. The next prime is 20706076343. The reversal of 20706076340 is 4367060702.

It is a self number, because there is not a number n which added to its sum of digits gives 20706076340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20706076343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 674264 + ... + 704303.

It is an arithmetic number, because the mean of its divisors is an integer number (1814195488).

Almost surely, 2^20706076340 is an apocalyptic number.

20706076340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20706076340 is an abundant number, since it is smaller than the sum of its proper divisors (22834615372).

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

20706076340 is a wasteful number, since it uses less digits than its factorization.

20706076340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1379327 (or 1379325 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 35.

The spelling of 20706076340 in words is "twenty billion, seven hundred six million, seventy-six thousand, three hundred forty".