4188620044 has 48 divisors (see below), whose sum is σ = 8431940160. Its totient is φ = 1783445760.

The previous prime is 4188620011. The next prime is 4188620057. The reversal of 4188620044 is 4400268814.

It is a junction number, because it is equal to n+sod(n) for n = 4188619985 and 4188620012.

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, 3947274 + ... + 3948334.

It is an arithmetic number, because the mean of its divisors is an integer number (175665420).

Almost surely, 2^4188620044 is an apocalyptic number.

It is an amenable number.

4188620044 is an abundant number, since it is smaller than the sum of its proper divisors (4243320116).

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

4188620044 is a wasteful number, since it uses less digits than its factorization.

4188620044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1858 (or 1856 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 37.

The square root of 4188620044 is about 64719.5491640663. The cubic root of 4188620044 is about 1611.9701257940.

Adding to 4188620044 its reverse (4400268814), we get a palindrome (8588888858).

The spelling of 4188620044 in words is "four billion, one hundred eighty-eight million, six hundred twenty thousand, forty-four".