2040203719449 has 81 divisors (see below), whose sum is σ = 3642522526461. Its totient is φ = 1096978176000.

The previous prime is 2040203719427. The next prime is 2040203719459. The reversal of 2040203719449 is 9449173020402.

The square root of 2040203719449 is 1428357.

It is a perfect power (a square), and thus also a powerful number.

2040203719449 is a `hidden beast` number, since 20 + 402 + 0 + 37 + 194 + 4 + 9 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 165035000025 + 1875168719424 = 406245^2 + 1369368^2 .

It is not a de Polignac number, because 2040203719449 - 2¹³ = 2040203711257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2040203719409) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 509921449 + ... + 509925449.

Almost surely, 2^{2040203719449} is an apocalyptic number.

2040203719449 is the 1428357-th square number.

2040203719449 is the 714179-th centered octagonal number.

It is an amenable number.

2040203719449 is a deficient number, since it is larger than the sum of its proper divisors (1602318807012).

2040203719449 is an frugal number, since it uses more digits than its factorization.

2040203719449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8056 (or 4028 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 2040203719449 in words is "two trillion, forty billion, two hundred three million, seven hundred nineteen thousand, four hundred forty-nine".