2072644399 has 8 divisors (see below), whose sum is σ = 2419135488. Its totient is φ = 1738753080.

The previous prime is 2072644391. The next prime is 2072644451. The reversal of 2072644399 is 9934462702.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2072644399 - 2³ = 2072644391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2072644391) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3149587 + ... + 3150244.

It is an arithmetic number, because the mean of its divisors is an integer number (302391936).

Almost surely, 2^2072644399 is an apocalyptic number.

2072644399 is a deficient number, since it is larger than the sum of its proper divisors (346491089).

2072644399 is an equidigital number, since it uses as much as digits as its factorization.

2072644399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6299885.

The product of its (nonzero) digits is 653184, while the sum is 46.

The square root of 2072644399 is about 45526.3044733482. The cubic root of 2072644399 is about 1274.9943660394.

The spelling of 2072644399 in words is "two billion, seventy-two million, six hundred forty-four thousand, three hundred ninety-nine".