3720781341 has 24 divisors (see below), whose sum is σ = 5491886400. Its totient is φ = 2426860800.

The previous prime is 3720781303. The next prime is 3720781349. The reversal of 3720781341 is 1431870273.

3720781341 is a `hidden beast` number, since 37 + 207 + 81 + 341 = 666.

It is not a de Polignac number, because 3720781341 - 2⁷ = 3720781213 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3720781296 and 3720781305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3720781349) 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, 61485 + ... + 105933.

It is an arithmetic number, because the mean of its divisors is an integer number (228828600).

Almost surely, 2^3720781341 is an apocalyptic number.

It is an amenable number.

3720781341 is a deficient number, since it is larger than the sum of its proper divisors (1771105059).

3720781341 is a wasteful number, since it uses less digits than its factorization.

3720781341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44657 (or 44654 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 3720781341 is about 60998.2076867837. The cubic root of 3720781341 is about 1549.5706533340.

The spelling of 3720781341 in words is "three billion, seven hundred twenty million, seven hundred eighty-one thousand, three hundred forty-one".