2644446452 has 12 divisors (see below), whose sum is σ = 4629139620. Its totient is φ = 1321835136.

The previous prime is 2644446443. The next prime is 2644446481. The reversal of 2644446452 is 2546444462.

It can be written as a sum of positive squares in 2 ways, for example, as 208629136 + 2435817316 = 14444^2 + 49354^2 .

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, 81413 + ... + 109164.

It is an arithmetic number, because the mean of its divisors is an integer number (385761635).

Almost surely, 2^2644446452 is an apocalyptic number.

It is an amenable number.

2644446452 is a deficient number, since it is larger than the sum of its proper divisors (1984693168).

2644446452 is a wasteful number, since it uses less digits than its factorization.

2644446452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194050 (or 194048 counting only the distinct ones).

The product of its digits is 737280, while the sum is 41.

The square root of 2644446452 is about 51424.1815880428. The cubic root of 2644446452 is about 1382.8601417249.

The spelling of 2644446452 in words is "two billion, six hundred forty-four million, four hundred forty-six thousand, four hundred fifty-two".