4420091820 has 48 divisors (see below), whose sum is σ = 12381677280. Its totient is φ = 1178174976.

The previous prime is 4420091801. The next prime is 4420091821. The reversal of 4420091820 is 281900244.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (4420091821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133486 + ... + 163274.

It is an arithmetic number, because the mean of its divisors is an integer number (257951610).

Almost surely, 2^4420091820 is an apocalyptic number.

It is an amenable number.

4420091820 is an abundant number, since it is smaller than the sum of its proper divisors (7961585460).

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

4420091820 is a wasteful number, since it uses less digits than its factorization.

4420091820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32274 (or 32272 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 4420091820 is about 66483.7711024277. The cubic root of 4420091820 is about 1641.1329446031.

The spelling of 4420091820 in words is "four billion, four hundred twenty million, ninety-one thousand, eight hundred twenty".