20854148 has 12 divisors (see below), whose sum is σ = 41708352. Its totient is φ = 8937480.

The previous prime is 20854147. The next prime is 20854159. The reversal of 20854148 is 84145802.

It is a happy number.

20854148 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (20854147) 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, 372368 + ... + 372423.

It is an arithmetic number, because the mean of its divisors is an integer number (3475696).

Almost surely, 2^20854148 is an apocalyptic number.

20854148 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20854148 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.

20854148 is a wasteful number, since it uses less digits than its factorization.

20854148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744802 (or 744800 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 32.

The square root of 20854148 is about 4566.6342091304. The cubic root of 20854148 is about 275.2522115929.

The spelling of 20854148 in words is "twenty million, eight hundred fifty-four thousand, one hundred forty-eight".