3720256 has 14 divisors (see below), whose sum is σ = 7382510. Its totient is φ = 1860096.

The previous prime is 3720253. The next prime is 3720293. The reversal of 3720256 is 6520273.

It can be written as a sum of positive squares in only one way, i.e., 3686400 + 33856 = 1920^2 + 184^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3720256.

It is not an unprimeable number, because it can be changed into a prime (3720251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29001 + ... + 29128.

Almost surely, 2^3720256 is an apocalyptic number.

It is an amenable number.

3720256 is a deficient number, since it is larger than the sum of its proper divisors (3662254).

3720256 is an equidigital number, since it uses as much as digits as its factorization.

3720256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58141 (or 58131 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 3720256 is about 1928.7965159653. The cubic root of 3720256 is about 154.9497721402.

The spelling of 3720256 in words is "three million, seven hundred twenty thousand, two hundred fifty-six".