4020620044 has 24 divisors (see below), whose sum is σ = 8173067168. Its totient is φ = 1694874240.

The previous prime is 4020620033. The next prime is 4020620053. The reversal of 4020620044 is 4400260204.

It is a junction number, because it is equal to n+sod(n) for n = 4020619997 and 4020620024.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1175289 + ... + 1178704.

Almost surely, 2^4020620044 is an apocalyptic number.

It is an amenable number.

4020620044 is an abundant number, since it is smaller than the sum of its proper divisors (4152447124).

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

4020620044 is a wasteful number, since it uses less digits than its factorization.

4020620044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2354065 (or 2354063 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 4020620044 is about 63408.3594173513. The cubic root of 4020620044 is about 1590.1240682164.

Adding to 4020620044 its reverse (4400260204), we get a palindrome (8420880248).

The spelling of 4020620044 in words is "four billion, twenty million, six hundred twenty thousand, forty-four".