20416854 has 16 divisors (see below), whose sum is σ = 40891392. Its totient is φ = 6796008.

The previous prime is 20416853. The next prime is 20416889. The reversal of 20416854 is 45861402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20416853) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3207 + ... + 7149.

It is an arithmetic number, because the mean of its divisors is an integer number (2555712).

Almost surely, 2^20416854 is an apocalyptic number.

20416854 is an abundant number, since it is smaller than the sum of its proper divisors (20474538).

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

20416854 is a wasteful number, since it uses less digits than its factorization.

20416854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4811.

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

The square root of 20416854 is about 4518.5013002101. The cubic root of 20416854 is about 273.3146688954.

The spelling of 20416854 in words is "twenty million, four hundred sixteen thousand, eight hundred fifty-four".