4004044019028 has 18 divisors (see below), whose sum is σ = 10121333492634. Its totient is φ = 1334681339664.

The previous prime is 4004044019009. The next prime is 4004044019069. The reversal of 4004044019028 is 8209104404004.

4004044019028 is a `hidden beast` number, since 4 + 0 + 0 + 4 + 0 + 440 + 190 + 28 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3191860950084 + 812183068944 = 1786578^2 + 901212^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 111223444973 = 4004044019028 / (4 + 0 + 0 + 4 + 0 + 4 + 4 + 0 + 1 + 9 + 0 + 2 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 4004044018983 and 4004044019001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55611722451 + ... + 55611722522.

Almost surely, 2^{4004044019028} is an apocalyptic number.

It is an amenable number.

4004044019028 is an abundant number, since it is smaller than the sum of its proper divisors (6117289473606).

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

4004044019028 is a wasteful number, since it uses less digits than its factorization.

4004044019028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111223444983 (or 111223444978 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The spelling of 4004044019028 in words is "four trillion, four billion, forty-four million, nineteen thousand, twenty-eight".