2061860449 has 24 divisors (see below), whose sum is σ = 2441220320. Its totient is φ = 1734384960.

The previous prime is 2061860387. The next prime is 2061860491. The reversal of 2061860449 is 9440681602.

It is not a de Polignac number, because 2061860449 - 2¹¹ = 2061858401 is a prime.

It is a super-2 number, since 2×2061860449² = 8502537022300963202, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2061860149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 88429 + ... + 109285.

Almost surely, 2^2061860449 is an apocalyptic number.

It is an amenable number.

2061860449 is a deficient number, since it is larger than the sum of its proper divisors (379359871).

2061860449 is a wasteful number, since it uses less digits than its factorization.

2061860449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20941 (or 20930 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 2061860449 is about 45407.7135407631. The cubic root of 2061860449 is about 1272.7792584856.

The spelling of 2061860449 in words is "two billion, sixty-one million, eight hundred sixty thousand, four hundred forty-nine".