2003658402004 has 36 divisors (see below), whose sum is σ = 4079041304436. Its totient is φ = 858675949824.

The previous prime is 2003658401999. The next prime is 2003658402007. The reversal of 2003658402004 is 4002048563002.

It can be written as a sum of positive squares in 2 ways, for example, as 476955984400 + 1526702417604 = 690620^2 + 1235598^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2003658402007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4972044 + ... + 5359900.

It is an arithmetic number, because the mean of its divisors is an integer number (113306702901).

Almost surely, 2^{2003658402004} is an apocalyptic number.

It is an amenable number.

2003658402004 is an abundant number, since it is smaller than the sum of its proper divisors (2075382902432).

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

2003658402004 is a wasteful number, since it uses less digits than its factorization.

2003658402004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414232 (or 414223 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

The spelling of 2003658402004 in words is "two trillion, three billion, six hundred fifty-eight million, four hundred two thousand, four".