2644061930 has 8 divisors (see below), whose sum is σ = 4759311492. Its totient is φ = 1057624768.

The previous prime is 2644061909. The next prime is 2644061947. The reversal of 2644061930 is 391604462.

It can be written as a sum of positive squares in 2 ways, for example, as 2624410441 + 19651489 = 51229^2 + 4433^2 .

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

It is a Curzon 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, 132203087 + ... + 132203106.

Almost surely, 2^2644061930 is an apocalyptic number.

2644061930 is a deficient number, since it is larger than the sum of its proper divisors (2115249562).

2644061930 is a wasteful number, since it uses less digits than its factorization.

2644061930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264406200.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 2644061930 is about 51420.4427246596. The cubic root of 2644061930 is about 1382.7931124578.

The spelling of 2644061930 in words is "two billion, six hundred forty-four million, sixty-one thousand, nine hundred thirty".