20164854 has 8 divisors (see below), whose sum is σ = 40329720. Its totient is φ = 6721616.

The previous prime is 20164853. The next prime is 20164877. The reversal of 20164854 is 45846102.

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

20164854 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20164853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1680399 + ... + 1680410.

It is an arithmetic number, because the mean of its divisors is an integer number (5041215).

Almost surely, 2^20164854 is an apocalyptic number.

20164854 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20164854 is a wasteful number, since it uses less digits than its factorization.

20164854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3360814.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 20164854 is about 4490.5293674577. The cubic root of 20164854 is about 272.1855261810.

The spelling of 20164854 in words is "twenty million, one hundred sixty-four thousand, eight hundred fifty-four".