20868376 has 16 divisors (see below), whose sum is σ = 39961440. Its totient is φ = 10212000.

The previous prime is 20868361. The next prime is 20868389. The reversal of 20868376 is 67386802.

20868376 = T₂₃₅ + T₂₃₆ + ... + T₅₁₆.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27375 + ... + 28126.

It is an arithmetic number, because the mean of its divisors is an integer number (2497590).

Almost surely, 2^20868376 is an apocalyptic number.

It is an amenable number.

20868376 is a deficient number, since it is larger than the sum of its proper divisors (19093064).

20868376 is a wasteful number, since it uses less digits than its factorization.

20868376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55554 (or 55550 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 20868376 is about 4568.1917648015. The cubic root of 20868376 is about 275.3147954357.

The spelling of 20868376 in words is "twenty million, eight hundred sixty-eight thousand, three hundred seventy-six".