20094749220 has 192 divisors, whose sum is σ = 72894689280. Its totient is φ = 4016604672.

The previous prime is 20094749123. The next prime is 20094749231. The reversal of 20094749220 is 2294749002.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6889 + ... + 200591.

It is an arithmetic number, because the mean of its divisors is an integer number (379659840).

Almost surely, 2^20094749220 is an apocalyptic number.

20094749220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20094749220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36447344640).

20094749220 is an abundant number, since it is smaller than the sum of its proper divisors (52799940060).

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

20094749220 is a wasteful number, since it uses less digits than its factorization.

20094749220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193754 (or 193752 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The spelling of 20094749220 in words is "twenty billion, ninety-four million, seven hundred forty-nine thousand, two hundred twenty".