2144405204404 has 24 divisors (see below), whose sum is σ = 4023753632640. Its totient is φ = 996358037376.

The previous prime is 2144405204377. The next prime is 2144405204437. The reversal of 2144405204404 is 4044025044412.

It is a happy number.

It is a super-2 number, since 2×2144405204404² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a self number, because there is not a number n which added to its sum of digits gives 2144405204404.

It is a congruent number.

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, 199585582 + ... + 199596325.

It is an arithmetic number, because the mean of its divisors is an integer number (167656401360).

Almost surely, 2^{2144405204404} is an apocalyptic number.

It is an amenable number.

2144405204404 is a deficient number, since it is larger than the sum of its proper divisors (1879348428236).

2144405204404 is a wasteful number, since it uses less digits than its factorization.

2144405204404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399182007 (or 399182005 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 34.

The spelling of 2144405204404 in words is "two trillion, one hundred forty-four billion, four hundred five million, two hundred four thousand, four hundred four".