4420091819 has 48 divisors (see below), whose sum is σ = 5412768480. Its totient is φ = 3557675520.

The previous prime is 4420091801. The next prime is 4420091821. The reversal of 4420091819 is 9181900244.

It is not a de Polignac number, because 4420091819 - 2²⁰ = 4419043243 is a prime.

It is a super-2 number, since 2×4420091819² = 39074423376781457522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4420090819) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19301597 + ... + 19301825.

It is an arithmetic number, because the mean of its divisors is an integer number (112766010).

Almost surely, 2^4420091819 is an apocalyptic number.

4420091819 is a deficient number, since it is larger than the sum of its proper divisors (992676661).

4420091819 is a wasteful number, since it uses less digits than its factorization.

4420091819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412 (or 369 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 4420091819 is about 66483.7710949071. The cubic root of 4420091819 is about 1641.1329444793.

The spelling of 4420091819 in words is "four billion, four hundred twenty million, ninety-one thousand, eight hundred nineteen".