3720540 has 48 divisors (see below), whose sum is σ = 10604160. Its totient is φ = 974400.

The previous prime is 3720511. The next prime is 3720551. The reversal of 3720540 is 450273.

It is a happy number.

3720540 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 3015 + ... + 4065.

It is an arithmetic number, because the mean of its divisors is an integer number (220920).

Almost surely, 2^3720540 is an apocalyptic number.

3720540 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3720540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5302080).

3720540 is an abundant number, since it is smaller than the sum of its proper divisors (6883620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3720540 is a wasteful number, since it uses less digits than its factorization.

3720540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122 (or 1120 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 3720540 is about 1928.8701355975. The cubic root of 3720540 is about 154.9537149348.

The spelling of 3720540 in words is "three million, seven hundred twenty thousand, five hundred forty".