3725540 has 96 divisors (see below), whose sum is σ = 10160640. Its totient is φ = 1115136.

The previous prime is 3725521. The next prime is 3725551. The reversal of 3725540 is 455273.

3725540 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 Harshad number since it is a multiple of its sum of digits (26).

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 31 ways as a sum of consecutive naturals, for example, 41816 + ... + 41904.

It is an arithmetic number, because the mean of its divisors is an integer number (105840).

Almost surely, 2^3725540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3725540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5080320).

3725540 is an abundant number, since it is smaller than the sum of its proper divisors (6435100).

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

3725540 is a wasteful number, since it uses less digits than its factorization.

3725540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 3725540 is about 1930.1657959875. The cubic root of 3725540 is about 155.0230974945.

The spelling of 3725540 in words is "three million, seven hundred twenty-five thousand, five hundred forty".