4591450020 has 48 divisors (see below), whose sum is σ = 12903545088. Its totient is φ = 1219864320.

The previous prime is 4591450009. The next prime is 4591450043. The reversal of 4591450020 is 200541954.

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

It is a self number, because there is not a number n which added to its sum of digits gives 4591450020.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124929 + ... + 157448.

It is an arithmetic number, because the mean of its divisors is an integer number (268823856).

Almost surely, 2^4591450020 is an apocalyptic number.

It is an amenable number.

4591450020 is an abundant number, since it is smaller than the sum of its proper divisors (8312095068).

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

4591450020 is a wasteful number, since it uses less digits than its factorization.

4591450020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282660 (or 282658 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 4591450020 is about 67760.2392262601. The cubic root of 4591450020 is about 1662.0724611125.

Adding to 4591450020 its reverse (200541954), we get a palindrome (4791991974).

The spelling of 4591450020 in words is "four billion, five hundred ninety-one million, four hundred fifty thousand, twenty".