20306854 has 8 divisors (see below), whose sum is σ = 30487968. Its totient is φ = 10144200.

The previous prime is 20306837. The next prime is 20306887. The reversal of 20306854 is 45860302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1422 + ... + 6529.

It is an arithmetic number, because the mean of its divisors is an integer number (3810996).

Almost surely, 2^20306854 is an apocalyptic number.

20306854 is a deficient number, since it is larger than the sum of its proper divisors (10181114).

20306854 is a wasteful number, since it uses less digits than its factorization.

20306854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9230.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 20306854 is about 4506.3126833366. The cubic root of 20306854 is about 272.8229384054.

The spelling of 20306854 in words is "twenty million, three hundred six thousand, eight hundred fifty-four".