2445286644 has 36 divisors (see below), whose sum is σ = 6410074944. Its totient is φ = 815095224.

The previous prime is 2445286639. The next prime is 2445286661. The reversal of 2445286644 is 4466825442.

2445286644 is a `hidden beast` number, since 24 + 4 + 528 + 66 + 44 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 2445286644.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1256892 + ... + 1258835.

Almost surely, 2^2445286644 is an apocalyptic number.

It is an amenable number.

2445286644 is an abundant number, since it is smaller than the sum of its proper divisors (3964788300).

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

2445286644 is a wasteful number, since it uses less digits than its factorization.

2445286644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2515746 (or 2515732 counting only the distinct ones).

The product of its digits is 1474560, while the sum is 45.

The square root of 2445286644 is about 49449.8396761810. The cubic root of 2445286644 is about 1347.2346950443.

The spelling of 2445286644 in words is "two billion, four hundred forty-five million, two hundred eighty-six thousand, six hundred forty-four".