2405687044 has 12 divisors (see below), whose sum is σ = 4210999884. Its totient is φ = 1202544224.

The previous prime is 2405687027. The next prime is 2405687069. The reversal of 2405687044 is 4407865042.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1447041600 + 958645444 = 38040^2 + 30962^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2405686988 and 2405687006.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56227 + ... + 89290.

It is an arithmetic number, because the mean of its divisors is an integer number (350916657).

Almost surely, 2^2405687044 is an apocalyptic number.

It is an amenable number.

2405687044 is a deficient number, since it is larger than the sum of its proper divisors (1805312840).

2405687044 is a wasteful number, since it uses less digits than its factorization.

2405687044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149654 (or 149652 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 40.

The square root of 2405687044 is about 49047.8036613262. The cubic root of 2405687044 is about 1339.9225922464.

The spelling of 2405687044 in words is "two billion, four hundred five million, six hundred eighty-seven thousand, forty-four".