4002406044020 has 12 divisors (see below), whose sum is σ = 8405052692484. Its totient is φ = 1600962417600.

The previous prime is 4002406043971. The next prime is 4002406044071. The reversal of 4002406044020 is 204406042004.

It can be written as a sum of positive squares in 2 ways, for example, as 2014520358244 + 1987885685776 = 1419338^2 + 1409924^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100060151081 + ... + 100060151120.

It is an arithmetic number, because the mean of its divisors is an integer number (700421057707).

Almost surely, 2^{4002406044020} is an apocalyptic number.

It is an amenable number.

4002406044020 is an abundant number, since it is smaller than the sum of its proper divisors (4402646648464).

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

4002406044020 is a wasteful number, since it uses less digits than its factorization.

4002406044020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200120302210 (or 200120302208 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

The spelling of 4002406044020 in words is "four trillion, two billion, four hundred six million, forty-four thousand, twenty".