20094820 has 24 divisors (see below), whose sum is σ = 43561728. Its totient is φ = 7778400.

The previous prime is 20094817. The next prime is 20094827. The reversal of 20094820 is 2849002.

It is not an unprimeable number, because it can be changed into a prime (20094827) 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, 15586 + ... + 16825.

It is an arithmetic number, because the mean of its divisors is an integer number (1815072).

Almost surely, 2^20094820 is an apocalyptic number.

20094820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20094820 is an abundant number, since it is smaller than the sum of its proper divisors (23466908).

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

20094820 is a wasteful number, since it uses less digits than its factorization.

20094820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32451 (or 32449 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 20094820 is about 4482.7246179082. The cubic root of 20094820 is about 271.8700539903.

The spelling of 20094820 in words is "twenty million, ninety-four thousand, eight hundred twenty".