3720285 has 24 divisors (see below), whose sum is σ = 6589440. Its totient is φ = 1940832.

The previous prime is 3720253. The next prime is 3720293. The reversal of 3720285 is 5820273.

3720285 = T₄₇ + T₄₈ + ... + T₂₈₁.

3720285 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3720285 - 2⁵ = 3720253 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1236 + ... + 2994.

It is an arithmetic number, because the mean of its divisors is an integer number (274560).

Almost surely, 2^3720285 is an apocalyptic number.

It is an amenable number.

3720285 is a deficient number, since it is larger than the sum of its proper divisors (2869155).

3720285 is a wasteful number, since it uses less digits than its factorization.

3720285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1817 (or 1814 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 3720285 is about 1928.8040335918. The cubic root of 3720285 is about 154.9501747587.

It can be divided in two parts, 3720 and 285, that added together give a triangular number (4005 = T₈₉).

The spelling of 3720285 in words is "three million, seven hundred twenty thousand, two hundred eighty-five".