2043641305 has 8 divisors (see below), whose sum is σ = 2460741192. Its totient is φ = 1629331968.

The previous prime is 2043641297. The next prime is 2043641321. The reversal of 2043641305 is 5031463402.

It can be written as a sum of positive squares in 4 ways, for example, as 514518489 + 1529122816 = 22683^2 + 39104^2 .

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 2043641305 - 2³ = 2043641297 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 696024 + ... + 698953.

It is an arithmetic number, because the mean of its divisors is an integer number (307592649).

Almost surely, 2^2043641305 is an apocalyptic number.

It is an amenable number.

2043641305 is a deficient number, since it is larger than the sum of its proper divisors (417099887).

2043641305 is a wasteful number, since it uses less digits than its factorization.

2043641305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1395275.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 2043641305 is about 45206.6511146314. The cubic root of 2043641305 is about 1269.0192906194.

The spelling of 2043641305 in words is "two billion, forty-three million, six hundred forty-one thousand, three hundred five".